An official ceremony is held every year on Mount Herzl, Jerusalem on the evening of Independence Day. The ceremony includes a speech by the speaker of the Knesset (the Israeli Parliament), artistic performances, a Flag of Israel, forming elaborate structures (such as a Menorah, Magen David) and the ceremonial lighting of twelve torches, one for each of the Tribes of Israel. Every year a dozen Israeli citizens, who made a significant social contribution in a selected area, are invited to light the torches.