April Fools’ Day (International) & Odisha Day (Odisha, India)
1669, 1st April: Aurangzeb deployed Special Forces to demolish temples in northern India.
1887, 1st April: Establishment of the Mumbai Fire Brigade.
1895, 1st April: Establishment of the Indian Army.
1930, 1st April: The minimum age of marriage for girls in India was set at 14 and for boys by 18 years.
1933, 1st April: First Indian Air Force aircraft landed at Karachi.
1935, 1st April: Establishment of the Reserve Bank of India.
1936, 1st April: Establishment of the Indian state Odisha.
1957, 1st April: Decimal system introduced in India.
1973, 1st April: Project Tiger launched in Corbett National Park in Uttarakhand by Indira Gandhi Government.
1976, 1st April: Establishment of the Apple Inc. in Cupertino, California, United States.
1990, 1st April: Bharat Ratna awarded to Dr. Babasaheb Ambedkar.
2004, 1st April: Google launched the Gmail e-mail system.
1578: William Harvey, an English physician.
1621: Guru Tegh Bahadur, the ninth of ten Gurus of the Sikh religion.
1815: Otto von Bismarck, the first chancellor of Germany.
1889: K. B. Hedgewar, the founding Sarsanghachalak of the Rashtriya Swayamsevak Sangh.
1909: Shivakumara Swami, an Indian supercentenarian, humanitarian, spiritual leader, and educator.
1937: Mohammad Hamid Ansari, the 12th Vice President of India.
1941: Ajit Wadekar, an Indian international cricketer.
1947: Ajit Pal Singh, the captain of the Indian hockey team.
1984: Narayanrao Vyas, a Hindustani musician of Gwalior Gharana.
1999: Shriram Bhikaji Welankar, the father of the Indian Postal Department’s pin code system.
2012: N. K. P. Salve, a veteran Indian politician.
2016: Pratyusha Banerjee, an Indian television actress.