I never understood why mules are sterile. Still don't, and I teach Biology.

Thought the moon was another plant with more people on it

When I was younger the summer holidays to only last a few weeks now they seem to last forever.

I used to think my mom hit me and my sister a lot. Now she assures me that she never ever hit either one of us. Since my sister has the same memory, I guess we were both delusional children.

When I would visit my grandparents when they lived in the Bronx when I was little, we used to take the bus to Alexander's department store, so I always thought it was far away. Turns out it was three blocks. My grandmother didn't like to walk.

Also, anyone notice how many of the comments so far have been about relative perceptions of size? Doesn't really surprise me, but I find it interesting.

My used to attend a specific congregation before it merged with another one to form an even bigger one and moved to a new building. The front of the building for the smaller congregation had a grassy hill that I used to roll down much to my parents' annoyance, since I was always still wearing my nice "church clothes", and I thought it was toy huge. Turns out is was like all of 5 feet from the top to the bottom. But then again, when you're only 3 years old, and small for your age, 5 feet is pretty big :

My elementary school. I thought the windows in the hallway were way up high; unreachable. Returned as grown. Nope. They're regular height. I stood in the hallway for a long time just staring, touching the window sill, and thinking, "I could have sworn they were higher than this." Smh.

Not me, but my kid used to think that in the old days the world actually existed in black and white, like in the photographs.

The steps to our front porch shrank from when I was a small child.

The hill in front of my grandparents' house was a lot less steep than when I was five.

I thought Mr. Green Jeans was hot.

Growing up I did not realize how dirt poor we were and how much our parents sacrificed for us.

Years. One year seemed to take forever to reach it's conclusion. As an adult I find one year is over in a blink of an eyelid.

As a kid, I used to think that a car with its hazards flashing was about to split in half and turn both left and right..

Long childhood walks turn out to only be a few hundred metres. I used to 'hide' things on top of the wardrobe in my room in spite of the fact that it was only about five feet tall and my secrets were fully visible to anyone of average height.

I thought there was a such a thing as adults

Crust is healthier

I never knew that my parents didn't have a lot of money. We were always dressed nicely and got to order clothes and shoes out of the Sears catalog right before school started. We would circle the things we wanted and then have to wait for a few months to get the items (we lived in a remote area of Turkey on a military base). We never got everything, but my dad told us it got lost in the mail coming over...we never seemed to mind and believed his story... having something new to wear on the first day of school was always special. I never felt poor or deprived ever.