collect information about an annual event you have attended in your

The Knowledge Day.

The Knowledge Day is celebrated in many countries, but in Russia it is celebrated at the 1st of September. It's a day, when children starts to go to school. For thouse, who does it first, all schools  arrange a festive lineage, where they are introduced to the school principal, their future class teacher and classmates. For those, who cross the threshold of the school not for the first time, on this day hold a concert dedicated to knowledge.