Oriental Mindoro Day, observed in the Philippines, recurs every November 15. This special non-working holiday commemorates the division of the province of Mindoro into Oriental Mindoro and Occidental Mindoro in 1950. The capital of Oriental Mindoro is Calapan, which was the former provincial capital of Mindoro. The province is primarily rural, with about 70% of its population engaged in agriculture and fishing, producing rice, coconuts, corn, fruits, and vegetables. Additionally, Oriental Mindoro is emerging as an ecotourism destination, known for its sandy beaches, waterfalls, and rich marine biodiversity. The name "Mindoro" is thought to derive from the Hispanicized version of the native name "Minolo," and there are legends suggesting it was originally named Mina de Oro due to supposed gold deposits.