What's the Kennection? #35

What TV Western gave Clint Eastwood his big break, playing cattle drover Rowdy Yates?

In what language was The Diary of Anne Frank originally written?

What carbon-and-fluorine material discovered by DuPont has such a low coefficient of friction that even a gecko can't walk up it?

What Star Trek device inspired Martin Cooper to invent the personal cell phone for Motorola in 1973?

During halftime of the Notre Dame-Army game in 1928, coach Knute Rockne told his team to "win one for" what late player?

What's the "Kennection"?