Mexico City's Zocalo welcomed Independence Day celebrations on Sept. 15 and 16. Many people arrived for the annual Cry of Independence ceremony. The Zocalo is the capital's principal square. It became packed for the occasion. Telemundo and Univision were at the Zocalo and covered the ceremony live. The celebration commemorates Mexico's independence. It drew crowds to the public square. Organizers prepared festivities for each day. The annual observance is a top national observance. The event ran on both days of the celebration.