Tu B’Av (The Fifteenth of Av) is no longer the well-known holiday on the Jewish calendar that it was in ancient times. In fact, in Talmudic times it was said: “There were no holidays so joyous for the Jewish People as the Fifteenth of Av…” (Ta’anit 26b).
On Tu B’Av, the unmarried maidens of Jerusalem would go out to the vineyards to dance together under the gaze of the unmarried men (sort of a Sadie Hawkins Day!). Each young lady would be dressed in white clothing borrowed from her neighbor so that those who came from wealthy families would not stand out and none would be embarrassed.
As they danced, the ladies would call out: “Young man, lift your eyes and choose wisely. Don’t look only at physical beauty–look rather at the family [values], ‘For charm is false, and beauty is deceitful. A God-fearing woman is the one to be praised…” (Proverbs 31:30).
While in ancient times the same ceremony also took place on Yom Kippur, the day of Tu B’Av was specifically set aside for this celebration because it was the anniversary of the date on which inter-tribal marriages were permitted after the Israelites had entered the Land of Israel.