Austria was a nation that existed from its declaration of independence from the Frankish Empire in 190 AH to the declaration of the Empire of Dutchland in 983. The empire was weak when it became independent. It rapidly fell under Islamic influence, becoming a centre of Sufi Islam. The nation allied with the Vikings against the Christendom. Successfully resisting Lyonnese incursions. However, its status as a centre for Sufi Islam was nothing compared to its invasion of the Tawantinsuyu in 952. The empire expanded further, capturing Brasilian mountains, where mountains made up of as much silver as scientifically possible led to Austria becoming the world's strongest nation. However, an important aristocrat overthrew the Austrian government, causing the rise of Dutchland. This state retained the power of Austria for most of its existence. Much of this wealth was traded with India.