Biên Hòa Province

Biên Hòa  listen) is a former province of South Vietnam originally formed in 1832 containing areas of Đồng Nai Province, Bà Rịa–Vũng Tàu Province and Bình Phước Province with total area of over 17.000 km².

Map of Dong Nai, Vietnam

In 1876 it was split to Bien Hoa, Thủ Dầu Một and Bà Rịa. On October 22, 1956 it was split to Bien Hoa, Long Khánh, Phước Long, Bình Long. On May 2, 1957 it contained four districts, Châu Thành Biên Hòa, Long Thành, Dĩ An and Tân Uyên. On January 23, 1959 Tân Uyên was separated and the rest became Phước Thành Province.