Why was writing one of history's most important cultural advances

According to the article,"social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media

Why couldn’t other societies utilize horses the same way the mongols could?

When the sponsor-investigator holds the ind for an investigational drug he or she is responsible for annual reporting of which one of the?