 In 1917, Rama VI declared a new law, the "Form of Address for Woman Act, 1917".The act mandated a new form of address, "Nangsao" (นางสาว) ('Miss') for women who were unmarried (the wording used in the act was "woman who has no husband") and "Nang" (นาง) ('Missus' [Mrs.]) for women who were married ('married woman or woman who has husband').Once a woman married, she had to use the address "Nang" before her given name for the rest of her life even if she divorced or widowed.