Mexico City's Zocalo hosted Independence Day festivities on Sept. 15 and 16. Large crowds arrived for the annual ceremony celebrating independence. The Zocalo is the capital's principal square. It filled with people for the event. Telemundo and Univision were at the Zocalo and covered the ceremony live. The ceremony marks Mexico's independence. It attracted people to the central square. Organizers planned events for each day. The annual observance is a top national observance. The event continued on both days of the celebration.