Chinese imperial history spans over two millennia, beginning with the establishment of the Qin Dynasty in 221 BCE. This era saw the unification of various warring states under a centralized government, leading to significant advancements in culture, technology, and infrastructure, such as the Great Wall of China. Subsequent dynasties, including the Han, Tang, and Ming, contributed to the rich tapestry of Chinese civilization through innovations in art, philosophy, and trade. The imperial system lasted until the early 20th century, when the Qing Dynasty fell in 1912, marking the end of over 2,000 years of imperial rule. Throughout this period, China experienced periods of prosperity and turmoil, influenced by internal strife and external pressures. The legacy of imperial China continues to shape modern Chinese society and its cultural identity.