Wendy's, 1969
Wendy’s is named after Dave Thomas’ daughter, Melinda. As a child, she had the same issue pronouncing Rs and Ls that many kids do, and she referred to herself as “Wendy” or “Wenda.” Her likeness was also used for the famous pigtailed logo
That's correct.
It also became a soft drink by accident. One day someone walked into Jacobs Pharmacy with a headache and needed a bottle. It was originally intended to be mixed with water before drinking. He didn't want to wait to get home and asked for it to be mixed at the soda fountain there in the drugstore. The tap was down at the other end of the counter, so the man behind the counter just mixed it with soda water. The result is what we know today.
More trivia: In Chinese, "Coca cola" translates to "Bite the wax tadpole."