Answer:
In 1707, the Kingdom of Scotland and the Kingdom of England joined together to become one country under a new name, the Kingdom of Great Britain. This was achieved through the Treaty of Union, which was a legal agreement signed by both countries to combine their parliaments, military, and economy into one unified entity.
The union between Scotland and England was a significant event in British history, and it marked the beginning of a new era of political and social integration. The union allowed for greater economic and military power, which helped to make Great Britain one of the world's most powerful nations at that time. The Treaty of Union remains an important document in British history, and it continues to shape the political and social landscape of the United Kingdom today.