Rizal returned to the Philippines in 1887 after studying in Europe for 5 years. He established a medical clinic in Calamba and helped the tenants of the Calamba hacienda document grievances against unfair land and rent policies of the Dominican friars. This angered the friars. Additionally, his novel Noli Me Tangere had been banned, causing controversy. Though initially protected by the governor, threats to his safety led Rizal to leave the Philippines again in 1888, reluctantly departing to continue advocating for reforms from abroad.