To remember camel case you have to think about the shape of the capital letters. They are like the humps of a camel as you can see in this image.
Pascal Casing – capitalizes each word:
ThisShouldBePascalCase
Camel Casing – is similiar to pascal case but the first word is not capitalized:
thisShouldBeCamelCase
You can read some history here
UPDATE:
Change the camel case image after reading the comments.