I came upon a
stray tweet from someone I follow, which lead me on a search that led to an
interesting blog entry asking "Why don't Christians count the Omer?"
Counting the Omer, if you don't know, is a Jewish tradition of counting the 50 days between Passover (the liberation from slavery) and the holiday, Shavu'ot, which commemorates the giving of the Torah to the people of Israel.