Kattowitz gained city status in 1865 in the Prussian Province of Silesia. The city flourished due to large mineral (especially coal) deposits in the nearby mountains. Extensive city growth and prosperity depended on the coal mining and steel industries, which took off during the Industrial Revolution. The city was inhabited mainly by Germans, Silesians, Jews and Poles. In 1884, 36 Jewish Zionist delegates met here, forming the Hovevei Zion movement. Previously part of the Beuthen district, in 1873 it became the capital of the new Kattowitz district. On 1 April 1899, the city was separated from the district, becoming an independent city.