Camel case and Pascal case mistake
Pascal is a persons name... a persons name always starts capitalized, whereas 'camel' is just a noun and thus, unless the start of a sentence, is always lowercased.
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.