List of Famous people born on June 21st
Serena Boothby
Joseph Leopold Imesch
Joseph Leopold Imesch was an American prelate of the Roman Catholic Church who served as Bishop of the Diocese of Joliet, Illinois from 1979 to 2006.
Edward James O'Brien Croker
Yuri Burago
Yuri Dmitrievich Burago is a Russian mathematician. He works in differential and convex geometry.
Alain Cadec
Alain Cadec is a French politician who served as Member of the European Parliament (MEP) for the West France constituency from 2009 until 2019. He is a member of the Union for a Popular Movement.
Katharine Louise Seymour
Willem Hendrik Keesom
Willem Hendrik Keesom was a Dutch physicist who, in 1926, invented a method to freeze liquid helium. He also developed the first mathematical description of dipole–dipole interactions in 1921. Thus, dipole–dipole interactions are also known as Keesom interactions. He was previously a student of Heike Kamerlingh Onnes, who had discovered superconductivity.