 The campaign period lasted 45 days, from 19 December 1985 to 5 February 1986.As the election campaign continued, Marcos was able to campaign in selected key cities while Aquino was able to campaign intensively and extensively, even going to remote places from the north of the Philippines to the south of the Philippines.The Aquino campaign concluded a rally that is believed to have 800,000 participants wearing yellow in Rizal Park and Roxas Boulevard forming a "sea of yellow".