<span> The </span>industrial use<span> of steam </span>power<span> started with Thomas Savery </span>in<span> 1698. He constructed and patented </span>in<span> London the first engine, which he called the "Miner's Friend" since he intended it to pump </span>water<span> from mines.</span>
Answer: The person who led the Marxist revolutionaries in Russia was Vladimir Lenin.
Explanation: I learned about this a while ago.
The main importance of the oral tradition of reciting poetry is that it allows for stories to be passed down from generation to generation--stories that often tell important lessons about how societies were formed.