Complex sentence: In 1873, the Khanate of Khiva was much reduced in size and became a Russian protectorate and, in 1920, the Khanate was abolished and replaced by the Khorezm People's Soviet Republic.
Split into simpler sentences: In 1873, the Khanate of Khiva was much reduced in size and became a Russian protectorate and. In 1920, the Khanate was abolished and replaced by the Khorezm People's Soviet Republic.