Based on the precise nature of the shang dynasty calendars what can you conclude about shang society

From the precise nature of the Shang dynasty calendars it is concluded that they had skilled astronomers.

Explanation:

Astronomical accuracy was the most important skill for the design of calendars that measures correctly the length of days, months and years.  

in november 1781, john hanson became the first president of the united states in congress assembled, under the articles of confederation. many people have argued that john hanson, and not george washington, was the first president of the united states, but this is not quite true.

explanation: