Cameroon Republic Day, also known as Cameroon National Day or Cameroon Unity Day, is celebrated annually on May 20. The holiday commemorates the establishment of a unitary state by President Ahmadou Ahidjo in 1972, when the federal system of government was abolished. It is a public holiday in Cameroon, marked by military and civilian parades, as well as a presidential speech. On this day, schools and businesses close to allow citizens to participate in the festivities. The event emphasizes national unity and pride, with widespread celebrations throughout the country.