List of Famous people born on April 21st

Jacob Isaacszoon van Swanenburg was a Dutch painter, draftsman and art dealer. He was known for his city views, history paintings, Christian religious scenes and portraits. He spent a substantial part of his early career in Italy before returning to his native Leiden. He was the teacher of the young Rembrandt.

David William Meyers was an American basketball player who played for the Milwaukee Bucks of the National Basketball Association (NBA). The forward played college basketball for the UCLA Bruins. He was an All-American as a senior in 1975, when he won his second national championship with UCLA. He was drafted in the first round of the 1975 NBA draft with the second overall pick, and played four years professionally with the Bucks.

Hippolyte Adolphe Taine was a French critic and historian. He was the chief theoretical influence of French naturalism, a major proponent of sociological positivism and one of the first practitioners of historicist criticism. Literary historicism as a critical movement has been said to originate with him. Taine is also remembered for his attempts to provide a scientific account of literature.

Friedrich Christoph Perthes was a German publisher, nephew of Johan Georg Perthes.

Horace Freeland Judson was a historian of molecular biology and the author of several books, including The Eighth Day of Creation, a history of molecular biology, and The Great Betrayal: Fraud In Science, an examination of the deliberate manipulation of scientific data.

Luis Alfonso Arias Graziani was a Peruvian air force officer and politician who served as Minister of Defence and Chief of the Joint Command.

Étienne-Denis, duc de Pasquier, Chancelier de France,, was a French statesman. In 1842, he was elected a member of the Académie française, and in the same year was created a duke by Louis-Philippe.