Calapan City Foundation Day, observed in Calapan, Philippines, is celebrated every March 21. This special non-working holiday commemorates the day Calapan was granted cityhood in 1998, following a plebiscite where the majority of residents voted in favor of the conversion. The city, which is the provincial capital of Oriental Mindoro, features a rich history, having been established by the Order of Augustinian Recollects in 1679 and later designated as the provincial capital in 1837. Celebrations include various events such as parades, community gatherings, cultural performances, educational programs, sporting events, and food festivals, with the annual parade being a highlight that showcases the city’s cultural and artistic traditions.