On Mike's latest business trip, he went to this university:
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Showing off this machine
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Hint #1:
This state was one of the 13 original colonies
Hint #2:
The first time polo was played in the United States, it was played HERE
Hint #3:
It boasts the nation's oldest carousel
Hint #4:
George M. Cohan, who penned "I'm a Yankee Doodle Dandy," was born here
Hint #5:
The state's official name is Rhode Island and Providence Plantations
Any guesses?