Whether it was Qin or the United States that came first?

Of course, the historical period of Qin is earlier.

The State of Qin is the predecessor of the Qin Dynasty. It was originally a vassal state during the Spring and Autumn Period and the Warring States Period. The Qin people are a branch of the Huaxia tribe. Legend has it that King Wu of Zhou enfeoffed Qin's ancestors because they were good at raising horses. In 770 BC, Duke Xianggang of Qin had meritorious service in escorting King Ping of Zhou to move eastward. He was granted the title of a prince and the Qin Dynasty was founded. The history of the Qin State includes the period of vassal states in the Spring and Autumn Period, and the Qin Dynasty period after the unification of China.

The Qin Dynasty was the first unified authoritarian centralized dynasty in China. It was a dynasty. .Founded by the First Emperor Yingzheng.

From 230 BC to 221 BC, the vassal state Qin successively destroyed the six kingdoms of Han, Wei, Chu, Yan, Zhao, and Qi, and finally established the first unified, multi-national state in Chinese history. National, authoritarian centralized state - Qin Dynasty.

On July 4, 1776, the Continental Congress formally adopted the Declaration of Independence in Philadelphia, declaring the founding of the United States. In 1783, Britain was defeated and recognized the independence of the United States.