Complex sentence: Korea Annexation Treaty was signed on August 22,1910, by representatives of the Korean and Japanese Imperial Governments, and was proclaimed to the public (and became effective) on August 29, officially starting the period of Japanese rule in Korea.
Split into simpler sentences: Korea Annexation Treaty, was signed on August 22,1910, by representatives of the Korean and Japanese Imperial Governments. The treaty was proclaimed to the public (and became effective) on August 29, officially starting the period of Japanese rule in Korea.