Long Khánh
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.