Why was the cleveland massacre significant in the formation of standard oil?

The Cleveland Massacre was instrumental in the rise of Standard Oil.  Rockefeller bought out his competitors at low prices and this led to the monopolization of the oil industry under Rockefeller’s control.  Eventually Rockefeller was investigated and his monopoly was broken up into smaller companies.

the space race was a battle to make advanced technology to get to the moon and to get a better understanding of space.