The Colonial Office was a department of the British government responsible for managing the administration of the British Empire's colonies. Established in the early 19th century, it oversaw colonial affairs, including governance, trade, and relations with indigenous populations. The office played a crucial role in shaping policies that affected the lives of millions in various territories. Over time, the Colonial Office evolved, reflecting changes in the empire and global politics. It was involved in significant events, such as the decolonization process after World War II, which led to the independence of many colonies. The office was eventually merged into the Foreign and Commonwealth Office in 1968.