Who was the most powerful country in 1400?

In 1400, the most powerful country was often considered to be the Kingdom of England, particularly due to its influence in Europe and its ongoing conflicts, such as the Hundred Years' War with France. However, the Ottoman Empire was also emerging as a significant power, having expanded its territory in the Balkans and Asia Minor. Additionally, the Ming Dynasty in China was consolidating its strength, marking a period of great cultural and economic achievement. Thus, the power dynamics of the time were complex and varied by region.