Nordic myths:
SEVEN DAYS A WEEK
Sun's Day
Moon's Day
Tiu's Day
Woden's Day
Thor's Day
Freya's Day
Saturn's Day
Moon's Day
Old English word:
mon(an)dæg, meaning
"day of the moon"
To this day "Moon's Day" is known as Monday. A day many school children dread.
The moon was believed to be its strongest or most vivid on this day.