When I was young, I believed that Abe Lincoln had a tail.
The reason for this is perfectly logical (or it was at the time). When you flip a coin you say "Heads or tails!", right? So I figured out that while the front half of the penny depicted Lincoln's head, the back half was a picture of his tail.
A childhood belief about politics

others believed things like this
- I used to believe that God looked exactly like the picture of Abraham Lincoln on an American penny.— Leah
- when i was in kindergarten i believed that abe lincoln was buried in a cabin and not a coffin— lisa
- I used to believe that your belly button was what held your top half to your bottom half...— Debelouwho
- I used to believe because I was born I Abe Lincoln's birthday I had a better shot at being President.— END
- We told our little sister that she had a long bushy tail and she fully believed us for ages!!Anon
- When I was very little, I used to believe that bacon came from the tail of a pig because it was curly!!— Audrey