Complex sentence: The Kuomintang, which assumed power over China in 1911, publicly advocated for gender equality, though not very many changes in property rights went into effect until the enactment of the Republican Civil Code in 1930, which changed the basic definitions of property and family inheritance.
Split into simpler sentences: The Kuomintang, which assumed power over China in 1911, publicly advocated for gender equality. To allow more equality with regards to property ownership, the Republican Civil Code enacted in 1930, changed the basic definitions of property and family inheritance.