Shun and Yu, collectively known as "Who from the Shun of Yao," are legendary figures from ancient China. Shun, also known as Yu the Great, is traditionally associated with the region of Henan, while Yu is believed to have originated from the Shandong Peninsula. The Shun of Yao refers to the era of the Yao Dynasty, which is a part of the Chinese historical timeline.

Shun, who became the third emperor of the Xia Dynasty, was known for his wisdom and virtue. He is often credited with governing the Yellow River effectively, which was a significant challenge during his time. The region of Henan, located in central China, has been a cultural and political hub since ancient times, making it a plausible birthplace for a figure like Shun.

Yu, on the other hand, is renowned for his engineering prowess, particularly in managing the Yellow River's floods. He is believed to have originated from the Shandong Peninsula, which is known for its fertile land and strategic location. The Shandong Peninsula has a rich history and has been a cradle of Chinese civilization, providing a suitable background for a figure like Yu.

The association of Shun and Yu with these specific regions is rooted in the historical and cultural significance of these areas. Henan, with its long history and strategic location, has been a focal point for many Chinese dynasties. The Shandong Peninsula, with its fertile land and proximity to the Yellow River, has been an essential area for agriculture and trade. These factors contribute to the belief that Shun and Yu, as significant historical figures, originated from these regions.

Historical records and archaeological findings support the association of Shun and Yu with Henan and the Shandong Peninsula. The "Records of the Grand Historian" (Shiji), compiled by Sima Qian in the 1st century BC, provides detailed accounts of the lives and achievements of Shun and Yu. Additionally, archaeological excavations in Henan and the Shandong Peninsula have uncovered artifacts and structures that date back to the time of the Xia Dynasty, further reinforcing the historical connections.

In conclusion, Shun and Yu, known as "Who from the Shun of Yao," are associated with the regions of Henan and the Shandong Peninsula in China. This association is based on their historical significance, the cultural and political importance of these regions, and the evidence provided by historical records and archaeological findings.