Calamba, officially the City of Calamba, is a 1st class component city in the province of Laguna, Philippines. According to the 2020 census, it has a population of 539,671 people.

José Protasio Rizal Mercado y Alonso Realonda was a Filipino nationalist, writer and polymath active at the end of the Spanish colonial period of the Philippines. He is considered a national hero of the Philippines. An ophthalmologist by profession, Rizal became a writer and a key member of the Filipino Propaganda Movement, which advocated political reforms for the colony under Spain.