April 11: holidays and historical events on this day

April 11 is celebrated:
International Day of Special Libraries (World Information Ethics Day), dedicated to celebrating the contribution of special libraries and information professionals around the world. This day is celebrated on the Thursday of the second full week of April every year.
Submarine Day commemorates the date of the first submersion of an American submarine in 1900.
World Parkinson’s Day. The date of this event was chosen in honor of the birthday of James Parkinson, the English doctor who first described this disease.
International Day for the Liberation of Nazi Concentration Camp Prisoners. This date was established to commemorate the millions of people who suffered under the Nazi regime during World War II. This day reminds us of the horrors of war and the need to preserve peace and dignity.
International Anti-Piracy Day. This date was established by the International Maritime Organization to raise awareness of the problem of piracy and to promote the protection of maritime security. Piracy is a serious threat to global trade and maritime security, and this day reminds us of the need for joint efforts to combat this phenomenon.
April 11 is also the birthday of the great American poet and writer Charles Bukowski, who was born in 1920 and became famous for his insightful works that depicted the lives of the lower classes of society. Bukowski is considered one of the most influential writers of his generation and his birth is celebrated around the world.




