As I promised, I tried to remember the whole story. Unfortunately, I cannot tell you much!! Now I remember why I don’t know. Because it’s very difficult to know about this topic! A lot of people write about this topic, but they don’t know either. So it’s complicated! I’ll try to find books where I can find more info.
The Days of the Week
In Ancient Greece /einshent griis/ people had gods and they decided to name five planets and the days week after the gods, plus the sun and the moon. The planets were Ares (Mars), Hermes (Mercury), Zeus (Jupiter), Aphrodite (Venus), and Cronus (Saturn).
Then the Romans came and adapted those names/gods and goddesses to Latin names: Sun (then Christians called it Domingo, from Dominus, Day of the Lord), Moon, Mars, Mercury, Jupiter, Venus, Saturn (then Jews called it Sabbath).
Then people everywhere liked it!
In English, a Germanic language, they “translated” into Germanic mythology some (*):
Sun’s Day = Sunday
Moon’s Day = Monday
*Tyr’s Day = Tuesday
*Wodan’s Day = Wednesday
*Thor’s Day = Thursday
*Freya’s Day = Friday
Saturn’s Day = Saturday
One last thing: Probably, “Germanic” is not what you think! English is a Germanic language. Which are the Germanic languages? English, German, Flemish, Danish, Swedish, Norwegian, Icelandic (more on this)
What about Spanish? Spanish is a Romance language. Romance languages are: Spanish, Catalan, Galician, Asturian, Aragonese…; Portuguese – Brazilian, French, Italian, Romanian (more on this)
Germanic languages and Romance languages are Indo-European languages…
Basque has no family! It’s amazing. It’s a mystery! ❤ (see list of languages with no family so far)