Hakhel
In the days of the Temple in Jerusalem, all Jewish men, women, and children on pilgrimage to Jerusalem for the festival would gather in the Temple courtyard on the first day of Chol HaMoed Sukkot to hear the Jewish king read selections from the Torah. This ceremony, which was mandated in Deuteronomy 31:10-13, was held every seven years, in the year following the Shmita (Sabbatical) year. This ceremony was discontinued after the destruction of the Temple, but it has been revived in Israel on a smaller scale.
Read more about this topic: Sukkot