As you know, there are 7 Major Feast (Festival) events which the Jews observe each year. Three are in the Spring and Four are in the Fall.
The Feast / Festival of Tabernacles is one of the 4 major Fall feasts.
Sukkot (aka Feast of Tabernacles / Booths) begins today. This feast / festival lasts for a week so the actual dates this year are Oct 3-10 (or 2-9 since the Jewish day begins at sundown).
Here are 4 links to tell you more about this Feast: HERE, HERE, HERE, and HERE