There is nowhere I can see in the tanach that associates Shavuot with Matan Torah. However, we say in the prayers on Shavuot: "Z'man Matan Toratainu" (the time of the giving of the Torah). Whenever ...
Every year, when I stay up learning Torah through the first night of Shavu'ot, I invariably fall asleep during the subsequent morning prayers. Last year, I tried something new: Learn all night, but ...