April 23, 1564 – Playwright William Shakespeare is born in Stratford-upon-Avon, England.
April 23, 1791 – 15th U.S. President James Buchanan is born in Cove Gap, Pennsylvania.
April 24, 1874 – Wireless telegraph and radio pioneer Guglielmo Marconi is born in Bologna, Italy.
April 21, 1926 – Elizabeth Alexandra Mary Windsor – Queen Elizabeth II – is born in Mayfair, London, England.