Modern contraception began early this century. In 1922, Mrs. Sanger of America came to China. Her theories of contraception and methods became the classical basis cited by Chinese workers on contraception. The Modern Women published since 1922 was the first professional publication in China, carrying many articles written by Chinese scholars. Monographs and translation of foreign works were also published. An institute for contraception was also founded in 1930. The Chinese Medical Association officially recognized contraceptive work as one of the public health works, marking the contraception, once lead by sociologists, under the category of the professional medical works.