Why did Wales become part of the UK?

The history of Wales consist of many invasions by the Anglo-Saxons and later the English. Wales became a part of the United Kingdom between the years 1536 and 1543, when the King, Henry VIII, decided that England and Wales should be united. This effected the Welsh language, as the "Deddfau Uno" (the law to join both countries), also brought in a law that the Welsh language should not be used. At the time 95% of people in Wales, could only speak Welsh.