Which historical event marked the end of certain colonial practices?

The conclusion of World War II is significant as it marked a pivotal shift in global dynamics, influencing the end of colonial practices in various regions. After the war, numerous colonies in Asia, Africa, and the Caribbean began to gain independence from European powers. The war itself had weakened European nations economically and politically, making it difficult for them to maintain control over their colonies.

Additionally, the emergence of the United States and the Soviet Union as superpowers during this period contributed to the decolonization movement. Both nations voiced their support for self-determination and independence for colonized countries, aligning with the growing momentum for independence that was fueled by nationalist movements within the colonies. International organizations, such as the United Nations, which was formed after the war, also promoted the principle of self-governance and respect for human rights, further encouraging the dismantling of colonial structures.

In contrast, the other historical events listed do not have the same direct correlation with the termination of colonial practices. World War I did not result in significant changes to colonial policies, The Cold War largely revolved around ideological conflicts rather than decolonization, and The Great Depression, while having profound economic effects, did not initiate the widespread independence movements seen after World War II.