British colonialism refers to the period when the British Empire expanded its control over various territories around the world, particularly from the 16th to the 20th centuries. This expansion involved establishing settlements, exploiting resources, and exerting political power over regions in Africa, Asia, the Americas, and the Caribbean. During this time, the British implemented systems of governance and trade that often disrupted local cultures and economies. Notable examples include the colonization of India, where the British East India Company played a significant role, and the establishment of colonies in North America, which eventually led to the American Revolution.