Jews first arrived in the eastern part of the Emirate of Bukhara, in what is today Tajikistan, in the 2nd century BC. After the Communists came to power they organized the country into republics, including Tajikistan, which was first formed as an autonomous republic within Uzbekistan in 1924, and in 1929 became a full-fledged republic. In an effort to develop Tajikistan, Soviet authorities encouraged migration, including thousands of Jews, from neighboring Uzbekistan.