Philippine President Ferdinand Marcos begins authoritarian rule by declaring martial law.

Ferdinand Emmanuel Edralin Marcos Sr. was a Filipino lawyer, politician, and kleptocrat who served as the tenth president of the Philippines from 1965 to 1986. Ruling the country as a dictator under martial law from 1972 to 1981, he granted himself expanded powers under the 1973 Constitution; he described his philosophy as "constitutional authoritarianism". He was eventually deposed in 1986 by the People Power Revolution and was succeeded as president by Corazon Aquino.

Proclamation No. 1081 was the document which contained formal proclamation of martial law in the Philippines by President Ferdinand Marcos, as announced to the public on September 23, 1972.