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The history of papal conclaves is rich with intriguing facts. The longest lasted 1,006 days in the 13th century, leading to the term's origin. Gregory X instituted rules limiting meals to pressure quicker decisions. The shortest conclave elected Pope Julius II in hours. The Sistine Chapel hosted its first conclave in 1492, becoming the permanent venue since 1878. Conclaves have occurred at various locations, including outside Rome. The Western Schism (1378-1417) saw rival popes. Hygiene was a major concern in earlier conclaves. The tradition of secrecy and the election of popes who were not cardinals or Italian are also notable.

Prepared by Emily Rhodes and reviewed by editorial team.