Who invented the lunar calendar and the solar calendar?

The first lunar calendar is called the Yellow Calendar, which is said to have been invented by the Yellow Emperor. In the Xia Dynasty, a man named Wannian was adapted into a perpetual calendar, also known as the summer calendar. The solar calendar was invented by the philosopher aloysius Li Yong. The lunar calendar has undergone many reforms, such as the Daming Calendar in the Southern Dynasty, the Wuyin Yuan Calendar in the Tang Dynasty, the Great Unification Calendar in the Southern Song Dynasty, the Time Calendar in the Yuan Dynasty and the Constitutional Calendar in the Qing Dynasty.