The Declaration of Malacca City as a Historical City is observed in Malacca, Malaysia, every April 15. This day commemorates the historical significance of Malacca, which was founded in 1396 by Sumatran prince Parameswara and became a prosperous trading port in the Malay Archipelago. The city is recognized for its rich cultural heritage, reflecting various influences from its history, including the Malacca Sultanate and colonial periods. Celebrations typically include concerts, fairs, cultural festivals, sports competitions, and guided tours that highlight Malacca's long history and diverse culture. The historical status of Malacca was first declared by then Prime Minister Mahathir Mohamad in 1989 and was later recognized internationally when it was added to the UNESCO World Heritage Sites list in 2008.