One of the facts is wrong, which makes me doubt every single one of them.
Hulk was originally gray, because they didn't want to affiliate him with any ethnic group. In one issue, there was a coloring issue, which caused him to have a greenish tint. The writers liked it and decided to keep him green.
Hulk was originally gray, because they didn't want to affiliate him with any ethnic group. In one issue, there was a coloring issue, which caused him to have a greenish tint. The writers liked it and decided to keep him green.