This question involves complex historical, legal, and ethical considerations, and there is no simple "yes" or "no" answer. According to modern international law and the United Nations Charter, the system of colonialism has been denied, and the people have the right to self-determination. Even if colonial rule lasts for a long time, it will not automatically give the occupying power legal sovereignty. The issue of colonial ownership in history is affected by a variety of factors： -The will and right of the local people to self-determination -Historical background and specific circumstances - International treaties and agreements -Cultural identity and social connections Many former colonies gained sovereignty through independence movements, while some regions chose to maintain special relations with the original suzerainty or become part of their territory. This is a complex issue that needs to be analyzed according to specific circumstances, historical background and the wishes of the relevant people.