Episode 97 · June 12, 2021
Above Our Heads
The hosts try to work out why there are seven days in a week and how the days got their names.
“It's thirsty Thor's day. Drink up.” (03:40)
Questions
Why are there seven days in a week, and where do the day names come from? (01:04)
Our guess
Roman planet and god names (Saturn, Sun, Moon), Norse gods for Thursday and Friday, and seven from the lunar cycle; Tuesday unknown.
Roman planet and god names (Saturn, Sun, Moon), Norse gods for Thursday and Friday, and seven from the lunar cycle; Tuesday unknown.
Reveal the answer
The answer
The seven-day planetary week comes from the Babylonians and the Hellenistic Greeks, and the Romans replaced their eight-day cycle with it by about AD 60. Saturday, Sunday and Monday honor Saturn, the Sun and the Moon; Tuesday, Wednesday, Thursday and Friday honor the Germanic gods Tiw, Woden, Thor and Frigg/Freya. Tuesday's Tiw corresponds to the Roman god of war, Mars.
The seven-day planetary week comes from the Babylonians and the Hellenistic Greeks, and the Romans replaced their eight-day cycle with it by about AD 60. Saturday, Sunday and Monday honor Saturn, the Sun and the Moon; Tuesday, Wednesday, Thursday and Friday honor the Germanic gods Tiw, Woden, Thor and Frigg/Freya. Tuesday's Tiw corresponds to the Roman god of war, Mars.
Verdict right
Transcript (auto-generated)
[00:00] All right, team. [00:01] Did you? [00:01] I'm sorry. [00:02] Oh. [00:02] Oh. [00:09] Go ahead. [00:10] Get it out of your system. [00:22] Ooh. [00:23] We doing under Googles? [00:24] That was the play of. [00:26] Super excited. [00:27] Told us we had to, sir. [00:28] So it was, you said we signed up for it. [00:34] In the end, it's going to be better and more true [00:36] than Google can give you. [00:39] All right, team. [00:40] It is time to do another undegigable. [00:46] I really just wanted to interrupt you. [00:49] I was thinking if I should, too. [00:55] Coalson, what do you have for us this week? [00:58] So this one has been bothering me for a while. [01:04] And it's probably too large a question for just one show. [01:12] Maybe just too large a question for just the three of us. [01:16] But two of my smartest friends, I feel like maybe we can do this. [01:23] Where do we get the days of the week? [01:28] Like the names? [01:29] Yeah, so there's seven of them. [01:30] Why is there seven of them? [01:32] And then also, why do we name them what we name them? [01:36] They're Roman or Greek, right? [01:37] But what are they after? [01:38] Like, what do we name them from? [01:40] When did they get named? [01:41] It was all the Greeks and the Romans, I think. [01:43] But what do they stand for, I guess, is what I'm looking for? [01:46] A little bit of history. [01:49] Monday is like moon day, right? [01:51] And like, Sunday is Sunday. [01:54] And then Saturday is for Saturn, right? [01:59] Potentially. [02:00] And that's all I know. [02:02] So I'm trying to think of my grade school Spanish. [02:09] So yeah, Luna is moon, so that makes sense. [02:14] Martes, maybe, is for Mars. [02:17] Yeah, OK, I like that. [02:19] Miracles, no idea. [02:22] Mercury. [02:23] OK, there you go. [02:24] Huevés. [02:28] Isn't that eggs? [02:29] Yeah, it's huevos. [02:32] Huevos rancheros. [02:33] Viernes. [02:34] Is it Viernes? [02:35] Sabado? [02:37] Yeah. [02:37] Sabado is. [02:38] Domingo. [02:39] Domingo is Sunday. [02:40] But that's for the Lord, the day of the Lord, or whatever. [02:45] The dominoes, yeah. [02:47] Yeah, so I don't know. [02:49] When did? [02:51] So were the Greeks on a seven day a week calendar? [03:00] Well, this is my question. [03:02] Yeah. [03:02] I mean, did the Romans set this up? [03:07] Because I feel like they set up a bunch of stuff, right? [03:09] It's like the Roman calendar. [03:14] Yeah. [03:15] Well, so like Thursday's. [03:18] Julian calendar. [03:19] We talked about this before with the months and whatnot. [03:21] Yeah. [03:22] But so Thursday is for Thor, right? [03:24] And Friday is like a Frigga. [03:28] Frigga, right? [03:28] Yeah, that's Thor's mom, at least from Marvel. [03:31] I don't know if that's true or not in real life. [03:35] OK, I like this. [03:36] So you're saying Thursday is for Thor? [03:40] I believe so, yeah. [03:40] Oh, man, Thursday just became my new favorite day. [03:43] That's awesome. [03:45] It's Thor's day. [03:46] And it's thirsty. [03:48] And it's thirsty. [03:48] It's thirsty Thor's day. [03:49] Drink up. [03:53] You guys are creating a monster is what you're doing. [03:58] I mean, I had always thought that, yeah, so I can't remember. [04:01] So yeah, I don't remember what Tuesday and Wednesday. [04:06] Well, so if Jason's right, if we look at the Spanish [04:09] and it gives us some, so Merca days is Tuesday, right? [04:13] Which would be Mercury. [04:15] Yeah, but that doesn't explain why in English it's Wednesday. [04:19] Like, I was just trying to get at what, [04:21] like your theme of maybe in the original. [04:25] So Spanish comes from Latin, right, ultimately. [04:29] And so maybe that's where the Latin Roman [04:32] or whatever naming convention came from. [04:34] I think you're really smart on that. [04:35] Everything got mutated when you moved to English, right? [04:42] So why would, yeah, exactly. [04:43] Some things it seemed got conserved, [04:47] like Monday and moon day, maybe it makes sense, I guess. [04:52] And Domingo becoming Sunday doesn't quite make sense [04:55] because if like. [04:59] That's right. [05:00] So maybe it's that was like from a pagan thing [05:02] or something like that, like Monday and Sunday. [05:06] But like, so was it, Annie Domino is AD, right? [05:10] It's. [05:11] Yep. [05:13] The year of our Lord. [05:14] Right. [05:15] So maybe, I mean, I guess the sun could get caught up [05:19] with the Lord stuff, but like that doesn't seem, [05:21] why isn't Sunday the Lord's day? [05:23] I mean, I guess it is the Lord's day, [05:25] but we don't call it the Lord's day. [05:29] Why isn't Sunday Lord's day Domingo? [05:34] I mean, it could be Sunday, right? [05:36] Because in like Judaism and whatnot, [05:43] like the Sabbath is Saturday, it's not Sunday. [05:45] Right. [05:46] So to distinguish Christians, you could imagine [05:49] if they wanted to distinguish themselves from Jews, [05:51] then they would create a different day of rest. [05:55] What about like the. [05:56] In honor of the sun. [05:58] Of Christ, the sun Christ. [06:01] Right. [06:02] Okay, okay. [06:03] All right. [06:04] But it's even spelled, I mean, it's S-U-S. [06:06] I know. [06:07] Well, sure. [06:08] All these things get. [06:10] Maybe there's the peas and pagans. [06:12] Right, exactly. [06:13] Well, okay, so Joey, do you really, [06:16] were you kidding me on Thor's day? [06:18] And Frinka is Friday. [06:19] So legit, so Thursday and Friday, I think. [06:22] Okay, what's his dad's name? [06:25] Zeus, no. [06:27] No, no, no. [06:27] Oh, Thor is Odin. [06:29] Odin. [06:30] Odin, could that be Wednesday? [06:34] Odin's day? [06:35] Oh. [06:36] Odin's day? [06:37] Maybe. [06:38] Yeah, maybe that's why Wednesday is spelled so stupid. [06:41] Wednesday, yeah. [06:45] I don't know. [06:46] Potentially, yeah. [06:48] I liked it. [06:49] I didn't know that. [06:50] Tuesday, I still think it's Mercury. [06:52] I like your idea. [06:54] Because Mercury was a god, right? [06:57] Yeah, but that doesn't attract to English. [06:59] Yeah, Martes is in Spanish is Tuesday. [07:04] So. [07:05] Oh, America Day is Wednesday. [07:06] You're right. [07:07] Yeah, but yeah, that's just like way off from Tuesday. [07:10] Maybe it's because it's the second day of the week. [07:12] It's the Tuesday. [07:13] The Tuesday, yeah. [07:16] But if it's coming from the Latin, [07:18] it's maybe about Mars, who's also a god, right? [07:23] Maybe. [07:24] Right, but I mean, we're trying to figure out the English. [07:25] Why is it? [07:26] No, I know. [07:27] I'm just trying to figure out how we got to where we got. [07:29] True. [07:30] All those things. [07:32] I mean, I guess it's Martes, so it could be, [07:35] they just took the back half of the word. [07:37] Martes. [07:38] Tuesday. [07:39] Martes Day. [07:40] Martes Day. [07:41] And then it just got shortened to Tuesday, I don't know. [07:43] Okay, I like that. [07:46] Okay, so. [07:47] Because we've got a conglomeration of like [07:50] multiple languages, cultures, [07:54] spellings. [07:55] Religions. [07:56] All kinds of stuff going on, yeah. [07:57] Yeah, and somehow it was agreed upon to just make it work. [08:04] And we think that these days of the week in English [08:08] go back to like old English, like middle ages. [08:13] They were rocking. [08:14] Oh, yes. [08:15] Seven day a week, and it was Monday. [08:15] For sure. [08:16] Because in Rome, it was that. [08:19] So we're transferring [08:23] the Latin to the old English. [08:25] Okay. [08:26] That's what I think. [08:27] I think it's a direct. [08:29] Yeah, I think that the calendar format has not changed, [08:33] right, since, for a long time. [08:36] And why was it seven? [08:37] Do we know that? [08:39] I mean. [08:40] I think it's just the. [08:43] That's some biblical stuff, isn't that in the Bible? [08:46] It is in the Bible, for sure. [08:47] But. [08:50] I guess that we would be before that, when I get. [08:55] Well, so. [08:57] The first, I think the first written gospels are, [09:05] you know, 80. [09:09] I think the last one is. [09:11] Yeah, the last one, the last gospel is, [09:13] yeah, early 200s. [09:16] And then you've got all the letters [09:18] are probably in the 300s. [09:19] I mean, so yeah, by the time. [09:22] And when were the Romans? [09:23] They were like the. [09:28] They were like. [09:29] 100 BC, 180, a little bit around there. [09:33] Romans, yeah, were like. [09:35] 500 years, right? [09:37] 500 BC or 1000 BC, all the way through to. [09:42] 1000, 80. [09:44] Right, something. [09:45] Yeah, okay. [09:46] So they were around forever. [09:47] They were around all that time, okay. [09:49] Yeah. [09:50] At least to my knowledge. [09:51] Yeah. [09:52] This is where we need Harper, [09:53] because Harper would definitely know. [09:54] Right, he knows all his Roman history, yeah. [09:56] But, you know, because as far as like the [09:59] Yahweh epic or the Jewish, you know, [10:01] if you're talking about Genesis, you know, the Torah, [10:06] that would have been an oral history [10:07] and written down probably, you know, maybe 200 BC. [10:14] So it's possible that that would influence [10:18] the Roman calendar. [10:19] Well, I'm just wondering like who. [10:23] Well, you shouldn't talk about influence, [10:25] but I'm trying to think of like who actually gets [10:27] to make the rules. [10:27] I mean, that's like a emperor, you know, type, right? [10:30] Like the political leader would get to like [10:32] hand that down, right? [10:33] Not so much from a religious tradition. [10:36] Maybe, I bet you where the seven days a week [10:38] comes from is phases of the moon. [10:41] So a moon, the moon cycle takes 28 days or so. [10:46] And so that means that, you know, a quarter moon [10:50] or a half moon, I guess, is seven days. [10:55] And then another seven days is, [10:58] so if you started out at new moon, [11:00] first half moon is seven days. [11:03] Full moon is another seven days. [11:05] The second half moon is another seven days. [11:07] It's gotta be lunar. [11:08] Okay, okay. [11:09] So it's a lunar calendar gives us our seven days. [11:13] So each quarter moon is a week, is that right? [11:17] Yeah, each half moon. [11:21] Yeah, okay. [11:21] Half moon? [11:22] Each quarter moon. [11:23] So a quarter would give you seven days [11:25] and then a half would be 14 days. [11:28] So you start out at a new moon where there's nothing. [11:30] Right, right. [11:31] And then you have a half moon, a waxing half moon. [11:36] Right. [11:37] And then you have a full moon [11:38] and then you have a waning half moon [11:40] and then you're back to a new moon. [11:42] So it's all half moons, not quarter moons. [11:44] Right. [11:46] Got it. [11:47] Oh, I see. [11:47] Okay, I got you, okay. [11:49] Okay, yeah. [11:50] And I mean, that's the thing I don't think, [11:51] yeah, I feel like the Bible was working [11:53] off of something else, right? [11:54] I mean, like all of that stuff is metaphor, right? [11:57] They're going, okay, if it's a seven day week, [11:58] then God only worked for six days and he taught, you know, [12:01] like they were just like making, [12:03] pulling that number out of air, right? [12:05] Like that's a metaphor. [12:07] Yeah, and now that I think of it, [12:09] like all the early calendars are moon related. [12:12] Based, right, so. [12:14] Okay, so, so Monday is moon day. [12:18] We don't have Tuesday. [12:22] Maybe it's. [12:23] But it may, but now we're getting back to the idea [12:25] that it makes sense that it's like celestial objects, right? [12:28] Yeah. [12:30] That are the original names of everything. [12:32] And then now we got to figure out the ones, [12:34] how we got to, you know, English. [12:37] Sounds like some of it comes from Norse. [12:40] Yeah, I mean, if it's Thor, yeah, if it's Norse, [12:42] it's Thor and Frigga and maybe Odin, [12:44] but it could be Wednesday, I like that idea. [12:47] But Saturday is Saturn for sure, right? [12:50] I mean, is that a Norse God? [12:53] No. [12:53] It's a Roman God. [12:54] It's a Roman God. [12:55] Yeah. [12:56] And Mercury and Mars are both Roman gods as well, right? [13:01] Yes. [13:02] Okay. [13:03] So maybe it's just a conglomeration of those things? [13:06] Yeah, so Tuesday is the outlier. [13:07] We have no idea. [13:08] We have no idea. [13:09] We don't have a theory on Tuesday. [13:10] No theory on Tuesday. [13:13] Except that it's, you know, the second day. [13:14] The second day. [13:15] It's time for twos. [13:17] Deuces. [13:18] Why isn't it deuce day? [13:22] Oh man, it's gonna be that thing now for me too. [13:25] It's thirsty deuce day. [13:26] Drink up. [13:27] Okay. [13:29] We have unleashed a monster. [13:33] If I don't say it's thirsty Thursday next week, [13:35] you need to remind me, because that's amazing. [13:42] Okay, yeah, so what I'm seeing on this, [13:45] the most amazing website of all, sjsu.edu. [13:52] Some guy, Thayer Watkins, faculty member there. [13:58] Yeah, Saturday, Sunday, Monday, [14:00] named after celestial bodies, Saturn, Sun, and Moon. [14:05] Other days are named after Germanic gods. [14:08] So Tuesday is two, I guess that was a god. [14:11] Wednesday's Woden, or probably from Odin, I would think. [14:15] Thursday, Thorsday, and Friday, Freya. [14:17] Nice, you nailed that Joey. [14:23] What is the god two, who is two? [14:26] That's a good question, but who was two? [14:29] He saved the abode of the gods of Asgard. [14:35] Two roughly corresponds to the Roman god of war, Mars, [14:39] whom another planet was named. [14:41] And so we know that Mars is Martes, so that makes sense. [14:45] I see, so it's just the Germanic version of Mars? [14:50] Ish, yeah. [14:51] Yeah. [14:53] You can see how maybe they got completed. [14:58] Of course, this is just one guy's website, so. [15:00] Right, I'm seeing on Wikipedia, [15:03] between the first and third centuries, [15:06] the Roman Empire gradually replaced [15:07] the eight-day Roman cycle with a seven-day week. [15:12] The earliest evidence we have of this new system [15:14] is Pompeian graffito, [15:18] referring to 6th of February in the year AD 60. [15:27] Okay, so by AD 60, we had a seven-day week. [15:32] It sped throughout Roman Empire in late antiquity. [15:35] By the fourth century, [15:36] it was wide use throughout the empire [15:39] and reached India and China. [15:43] Yes, so this is, yeah, so I'm looking at, [15:45] there's some other languages [15:50] that have Thursday, [15:53] named after Jupiter in some fashion, [15:56] instead of Thor. [15:59] Friday sometimes was Venus. [16:02] Yes, okay, so according to timeanddate.com, [16:06] the reason why we organize our lives around a seven-day week [16:09] is quite literally above our heads, [16:13] based on the moon cycle. [16:19] It looks like the Greeks from the Hellenistic period [16:22] created a seven-day planetary week, [16:24] naming their days after the deities, [16:27] Helios, Selin, Aries, Hermes, Zeus, Aphrodite, and Chronos. [16:33] The Jews also had a seven-day week. [16:36] Yeah, it seems like it goes back to the Babylonians. [16:39] Okay, and these things influenced the Romans [16:42] to drop their eight-day week and move to a seven-day week, [16:44] because they were all about like just, you know, [16:47] we're gonna take over the world, [16:49] so let's make sure we got everybody on board. [16:52] Right. [16:53] If that makes your lives easier. [16:55] Right, exactly. [16:56] And it will keep you paying taxes, too. [16:58] Right, I won't, if all I have to do [17:00] is give you a seven-day week instead of an eight, [17:02] I don't have to murder you, let's do this, yeah. [17:08] Okay. [17:09] Apparently, yeah, Jupiter was Thursday. [17:13] Yeah, yeah. [17:14] Okay, interesting. [17:16] So Tuesday is from, yeah, the Norse god. [17:21] From the Germanic Norse god, too, T-I-W. [17:27] And it's the Romans' name this day [17:29] after there were god Mars, [17:34] and the old English, Tuesday. [17:38] So in French and Spanish, it's Marty. [17:42] And in the Netherlands, it's. [17:45] Good old Marty. [17:46] Din's dang. [17:48] Hey, it's Marty. [17:49] Hey, I'm Marty, the war god. [17:51] What are you doing? [17:55] I would watch that movie. [18:03] Okay, so yeah, so Tuesday was the difficult one. [18:07] We apparently didn't know that the Norse [18:10] or German version of Mars was. [18:14] Two. [18:14] Two. [18:15] Everything else, we kinda nailed, though, honestly. [18:18] For the most part. [18:19] Good on us, yeah. [18:21] Yeah. [18:23] And you nailed the moon cycle thing, Jason. [18:26] Yeah. [18:27] And we also brought in the Hebrews. [18:29] We maybe killed this. [18:30] Yeah. [18:33] Why do they even need Google? [18:35] Just call us. [18:36] See how easy that was for us. [18:39] It only took us 20 minutes [18:40] to figure out the days of the week. [18:42] It's fine. [18:43] And then source it through Wikipedia [18:45] to make sure we were right. [18:47] Sure. [18:48] And we still had no idea where Tuesday came from. [18:50] But hey, who needs the internet? [18:51] That's all I'm saying. [18:52] You think we should start doing, [18:54] you know how on Google, [18:56] when you do a search it tells you how long it took [18:58] to get too many answers? [19:01] You think we should start doing that for our own Google list? [19:04] 0.076 seconds, and it's like 25 minutes or so. [19:09] 25 minutes to come up with 18 different answers. [19:12] They were right-ish. [19:14] One was right. [19:16] They were right-ish. [19:18] It's qualified, too. [19:20] Great. [19:23] Yeah. [19:24] Nailed it. [19:25] Next question. [19:27] Are you good? [19:28] Yeah, no, I feel good about that. [19:30] I'm ready, yeah. [19:31] Let's just, I'm ready to take on the days of the week. [19:36] So, oh, the one thing I was gonna ask, [19:38] so those were all, no Greek gods, right? [19:42] They were all Roman or Germanic. [19:44] Is that correct? [19:44] Norse, yeah. [19:45] Okay, Norse. [19:46] So the Greek ones got snubbed out [19:48] and it's a Roman gods world, you know? [19:53] They're just living in it. [19:54] Yeah, that's right.