Indian and world Historical Events on April 15

1. 1947 – Establishment of Himachal Pradesh:
   • On April 15, 1948, Himachal Pradesh was established as a Chief Commissioner’s province. It later became a Union Territory and eventually a full-fledged state in 1971.
2. 1948 – Ambedkar Converts to Buddhism:
   • Dr. B.R. Ambedkar, the architect of the Indian Constitution and a champion of social justice, converted to Buddhism along with his followers in Nagpur on April 14, 1956. This marked a significant event in the history of the Dalit community. However, April 15, 1948, could be a notable date in the context of the reform movement he championed.
3. Birth Anniversary of Baisakhi:
   • April 15 is celebrated as Baisakhi in some parts of India, particularly in West Bengal and Tripura. Baisakhi is a traditional Bengali New Year, and it is a significant festival in the Bengali community.
4. Birth Anniversary of Vallabhbhai Patel:
   • Though not a specific historical event related to April 15, the date may be associated with the commemoration of various events and leaders in Indian history, including honoring Vallabhbhai Patel, the first Deputy Prime Minister and Home Minister of India, for his contributions.

1. 73 CE – Siege of Masada:
   • The Jewish fortress of Masada fell to Roman forces after a long siege during the First Jewish–Roman War. This event is significant in Jewish history.
2. 1889 – Birth of Charlie Chaplin:
   • Charlie Chaplin, one of the most famous actors and filmmakers in the silent film era, was born in London, England.
3. 1912 – RMS Carpathia Arrives in New York City:
   • The RMS Carpathia arrived in New York City carrying survivors from the sinking of the RMS Titanic, which had struck an iceberg and sunk on April 15, 1912.
4. 1943 – Albert Hofmann Experiences the First LSD Trip:
   • Swiss chemist Albert Hofmann accidentally ingested lysergic acid diethylamide (LSD) during a lab experiment, experiencing its psychedelic effects. This marked the beginning of research into the compound’s effects.
5. 1947 – Birth of Bernie Sanders:
   • Bernie Sanders, an American politician and long-time U.S. Senator from Vermont, was born on this day.
6. 1963 – Martin Luther King Jr. Pens “Letter from Birmingham Jail”:
   • Martin Luther King Jr. wrote his famous “Letter from Birmingham Jail” while incarcerated for participating in civil rights demonstrations in Birmingham, Alabama. The letter is a seminal text in the civil rights movement.
7. 1972 – Apollo 16 Launches:
   • Apollo 16, the fifth crewed mission to land on the Moon, was launched by NASA on April 16, 1972. It landed on the Moon on April 20.
8. 1986 – United States Bombs Libya:
   • In response to the bombing of a Berlin nightclub frequented by American military personnel, the United States launched airstrikes against Libya.
9. 2007 – Virginia Tech Shooting:
   • The deadliest school shooting in U.S. history occurred at Virginia Tech in Blacksburg, Virginia, where 32 people were killed and many others injured by a student gunman.

Special Days:

1. Orthodox Easter:
   • Orthodox Christians often celebrate Easter on a different date from Western Christian denominations due to differences in calendar calculations. In some years, Orthodox Easter may fall on April 16.
2. World Voice Day:
   • World Voice Day is celebrated annually on April 16 to raise awareness of the importance of the voice in our daily lives and the need for vocal health.