On April 6, 1938, in Caspa of Aragon, Ramiz Varvarica (1900-1938), activist of the democratic movement, participant in the Spanish War, Hero of the People, was killed.
On April 5, 1939, in Tirana, just two days before the fascist invasion of Albania, Leka I was born in the royal palace, the son of King Zog and Queen Geraldina.
The "Rezalle Massacre" took place, a massacre of the Serbian police and army forces against the Albanian civilian population in the village of Rezalle in Skenderaj.
On April 4, 1949, the treaty establishing NATO (North Atlantic Treaty Organization), a political-military organization of European and North American countries, was signed in Washington.