The strongest countries/empires of every century!!

*1st century:* Roman Empire
- Spanned across three continents: Europe, Africa, and Asia
- Controlled a vast territory of approximately 5.9 million square miles
- Had a large and well-organized military
*2nd-5th centuries:* Roman Empire (continued)
- Maintained its dominance despite internal conflicts and external pressures
- Reached its peak in the 2nd century, with a population of around 50-60 million
*6th-7th centuries:* Tang Dynasty (China)
- Unified various Chinese kingdoms and expanded its borders
- Established a strong economy, with the Silk Road playing a significant role
- Had a large and efficient administrative system
*8th-9th centuries:* Abbasid Caliphate
- Emerged as a major power in the Middle East and North Africa
- Controlled a vast territory stretching from Spain to India
- Fostered a cultural and scientific renaissance
*10th-11th centuries:* Song Dynasty (China)
- Continued China's economic and cultural growth
- Developed advanced technologies, such as gunpowder and the compass
- Maintained a strong military and administrative system
*12th-13th centuries:* Mongol Empire
- Created the largest contiguous empire in history
- Stretched from China to Eastern Europe
- Had a powerful military and efficient administrative system
*14th-15th centuries:* Ming Dynasty (China)
- Re-established Chinese dominance after the Mongol Empire's decline
- Built the Forbidden City and the Great Wall
- Developed a strong economy and administrative system
*16th-17th centuries:* Spanish Empire
- Emerged as a dominant world power
- Controlled a vast territory in the Americas, Africa, and Asia
- Had a strong military and administrative system
*18th-19th centuries:* British Empire
- Became the dominant world power
- Controlled a vast territory spanning across every continent
- Had a strong military, administrative system, and economy
*20th century:* United States
- Emerged as a dominant world power after World War II
- Controlled a vast territory, with military bases across the globe
- Had a strong economy, military, and administrative system

Note that the concept of a "strongest" country/empire can be subjective and depend on various factors such as economic power, military strength, cultural influence, and more.