For ten points, name this 49-day period which the Torah says is the time to bring offerings to the temple, between Pesach and Shavout.
During this time period, no weddings take place, no hair is cut, and nothing is done involving dancing or music, with the exception of the 33rd day. During this time of sadness, 12,000 disciples of Rabbi Akiva died during the persecution following the Bar Kokhba revolt. For ten points, name this 49-day period which the Torah says is the time to bring offerings to the temple, between Pesach and Shavout.
During this time period, no weddings take place, no hair is cut, and nothing is done involving dancing or music, with the exception of the 33rd day.
Sefirat Ha'Omer or the Sefirah (prompt on "the Counting")