Awnser: Humans had been around for tens of thousands of years by the year 1 A.D. when the Earth's population was an estimated 200 million.
The candidate can sue the maker of the ad because the first amendment protects nothing said on the radio.
The answer is D. <span> invention of the first steel tools
Actually, this very topic is still a hot debate among scientists because the shift happens on different reasons in each region of the world.
But one thing they have in common is that Steel tools give the member of early societies the capabilities to rake uplands and cutting up crops that really useful in farming and herding.</span>
Answer:
In 1754, the French built Fort Duquesne where the Allegheny and Monongahela Rivers joined to form the Ohio River (in today's Pittsburgh), making it a strategically important stronghold that the British repeatedly attacked.
Explanation: