Colonialism and decolonisation are important topics in today's discourse. I was wondering if there is a concrete definition and how this differs from historical empires . We say the Roman Empire but British colonialism. Is the difference in the level of technology that was employed or the distances involved ie. Between the place people are coming from and the place being invaded ? I've often seen colonialism described in a uniquely western context and this feels odd to me because I would argue there have been empires and enslavement all across the world and this comes across as ahistorical.