Term: Solar eclipse of August 21, 2017, Description: Total solar eclipse, Question: Did any adult witness the 2017 eclipse and the last eclipse seen all across the USA?, Answer:No
Fact1: The last eclipse seen all across the USA occurred in 1918.  Fact2: An adult in 1918 would be, at minimum, 117 years old in 2017. Fact3: The oldest human currently living is 111 years old. 