RABBI SHIRA STUTMAN (Director of Community Engagement, Sixth & I Historic Synagogue, Washington, DC): The Shavuot holiday is actually one of the more important holidays in the Jewish tradition, and it basically has two reasons for being. The original reason comes out of the Israelite people being an agricultural people a few thousand years ago in the land that we now call Israel. The Israelites would bring the bikkurim, the first fruits, the first offerings, of their harvest up to the temple as an offering to God, as a way of saying thank you and in hopes of a good harvest.
After the temple was destroyed in about 70 CE, the rabbis needed to enlarge the understanding of Shavuot because we no longer had a temple to which people could bring their offerings. So they brought forward this understanding of Shavuot as being the anniversary of revelation: the anniversary of the moment that God gave the Torah, our Bible or a part of the Hebrew Bible, to the Israelite people on Mount Sinai, basically turning them from this rag-tag group of slaves who had just weeks ago come out of Egypt into a people complete with its own set of texts and ways of being in the world.