April 5 in History
823
Lothair I is crowned King of Italy by Pope Paschal I.
1536
Charles V makes a Royal Entry into Rome, demolishing a swath of the city to re-enact a Roman triumph.
1956
Cuban Revolution: Fidel Castro declares himself at war with Cuban President Fulgencio Batista.
1983
The People's Armed Police is officially founded
2009
North Korea launches its controversial Kwangmyŏngsŏng-2 satellite. The satellite passed over mainland Japan, which prompted an immediate reaction from the United Nations Security Council, as well as participating states of Six-party talks.