Cao Cao who lived in the perilous late Eastern Han dynasty had unified the north of China by his remarkable ability of military and administration to conquer separatist warlords, so as to lay a solid foundation for unifyingl the whole country.

• 摘要生当东汉末年的曹操，在当时极其险恶的社会环境中，以其卓越的军事和政治才干，扫灭群雄，统一北方，为中国由乱而治、从分到合奠定了坚实的基础。