June 19, 1965: Samar Province was divided into 3 provinces
On June 19, 1965, a significant milestone reshaped the administrative landscape of the Philippines: Samar, one of the country's largest provinces at the time, was officially divided into three distinct provinces - Northern Samar, Eastern Samar, and Western Samar (later renamed simply "Samar"). This historic event, enacted through Republic Act No. 4221, marked a pivotal moment in the nation's efforts to improve governance and address the unique needs of Samar's diverse regions.