Here is a question about this article: Pan-Slavism, a movement which came into prominence in the mid-19th century, emphasized the common heritage and unity of all the Slavic peoples. The main focus was in the Balkans where the South Slavs had been ruled for centuries by other empires: the Byzantine Empire, Austria-Hungary, the Ottoman Empire, and Venice. The Russian Empire used Pan-Slavism as a political tool; as did the Soviet Union, which gained political-military influence and control over most Slavic-majority nations between 1945 and 1948 and retained a hegemonic role until the period 19891991.
What is the answer to this question: How long did the Soviet Union retain a hegemonic role?
****
So... until the period 19891991

Here is a question about this article: Ahom Kingdom (12281826) was a kingdom and tribe which rose to prominence in present-day Assam early in the thirteenth century. They ruled much of Assam from the 13th century until the establishment of British rule in 1838. The Ahoms brought with them a tribal religion and a language of their own, however they later merged with the Hindu religion. From thirteenth till seventeenth century, repeated attempts were made by the Muslim rulers of Delhi to invade and subdue Ahoms, however the Ahoms managed to maintain their independence and ruled themselves for nearly 600 years.
What is the answer to this question: What event caused the end of Ahom rule in Assam?
****
So... British rule

Here is a question about this article: Canada's constitution, being a 'mixed' or hybrid constitution (a constitution that is partly formally codified and partly uncodified) originally did not make any reference whatsoever to a prime minister, with her or his specific duties and method of appointment instead dictated by "convention". In the Constitution Act, 1982, passing reference to a "Prime Minister of Canada" is added, though only regarding the composition of conferences of federal and provincial first ministers.
What is the answer to this question: Which law first referred to the prime minister in Canada?
****
So...
the Constitution Act