Who Ruled Asia in the 20th Century?

No single person or entity ruled all of Asia during the 20th century. Asia is the world's largest and most diverse continent, encompassing a vast array of cultures, languages, religions, and political systems. Throughout the century, the region experienced profound political transformations, including the fall of empires, the rise of nation-states, decolonization, wars, and revolutions. Power was fragmented among numerous countries, colonial powers, and local leaders, making centralized control over the entire continent impossible.