Complex sentence: At that time, law school graduation was not necessary for bar admission, and on December 6,1879, Gordon was admitted to the California Bar, and in 1880 established her own firm in San Francisco specializing in general and criminal law.
Split into simpler sentences: At that time, law school graduation was not necessary for bar admission, and on December 6,1879, Gordon was admitted to the California Bar. In 1880 she established her own firm in San Francisco specializing in general and criminal law.