490 B
490 B
the tenth day of the seventh month
This is the seventh month of the Hebrew calendar. The tenth day is near the end of September on Western calendars. (See: rc://en/ta/man/translate/translate-hebrewmonths and rc://en/ta/man/translate/translate-ordinal)
the Day of Atonement
On this day each year the high priest would make a sacrifice to Yahweh so that Yahweh would forgive all the sins of the people of Israel. See how you translated this in Leviticus 23:27.