About 35 years. Genghis Khan created the Mongol empire in 1206. By the 1230s Batu Khan invaded Russian and Bulgarian lands. In 1241 at the battle of Mohi Batu Khan defeater a combined German, Polish and Hungarian army. Further expansion ceased do to the death of Ogedei Khan. Batu Khans attention was turned to succession instead of invading Western Europe.
I think the name you are looking for is "tenement".
The name comes from tenancy: the flats in those dwellings were typically rented, not owned.
Tenements bring with them the association of being overcrowded and having sanitary problems.
Tenements were an important aspect of life in New York in the 19th century.<span />
1. Hamilton's critics claimed that his scheme would provide enormous profits to speculators who had bought bonds from Revolutionary War veterans for as little as 10 or 15 cents on the dollar. For six months, a bitter debate raged in Congress, until James Madison and Thomas Jefferson engineered a compromise.
2. Southerners opposed this plan because many of the Southern states had already paid off their war debts.
