Fritz the Cat was the first ever animated film to be awarded this rating.
X
Back in my day we didn't have any breakdancing or skateboarding, we did fencing and swimming in Athens at this event.
Olympics
An attempt to keep horses safe from rocky or otherwise dangerous terrain, it's now also a party game!
Horseshoes
Outside of Mortal Kombat, they also have some potent venom!
Scorpions
This battle of this American Civil War location had the most casualties.
Gettysburg
Just one of these could be anybody, but two would include Bono.
U
Nowadays you have all this XBox and PlayStation... back in 1975 we played on this company's console!
Atari
This word for horses can also be found in a Denver sports team.
Broncos
A group of these is called a parliament.
Owls
Batteries for electric vehicles are often composed mostly of this element.
Lithium
Better start counting your ABCs now, it's the 19th letter of the alphabet.
S
What the heck is Firefox!? The only browser I used to use was this one, known for using tabbed browsing.
Opera
Horses often look in the same direction that these point.
Ears
These dumpster divers are one of the few mammals that can descend vertical tree trunks headfirst.
Raccoons
The battle of this coastal passage of Greece was iconic, as the Spartans had only 300.
Battle of Thermopylae
The Scarlet Letter is known as this letter, for the crime that was committed.
A
No we didn't have any of this genre of music from the Southern Appalachians, invented in a state that shares the nickname.
Bluegrass
You can estimate a horse's age by this, as some of them erupt around 4½ years old.
Teeth
The red-eyed one of these isn't just red-eyed, it also has three eyelids!
Tree Frog
The U.S. invaded Japan on this volcanic island, the battle was known for its heavy casualties and the iconic U.S. flag-raising photo.
Iwo Jima
This letter is known for it's absence from basically every periodic table.
J
What's all this talk about this country, recognized in 2011, back in my day there was only one!
South Sudan
When horses are low on electrolytes, they can get these, sometimes called "thumps."
Hiccups
Although often confused with squirrels, these are actually more closely related to kangaroos and koalas than rodents. Sweet!
Sugar Gliders
Operation Barbarossa was an invasion on this country, from Germany.
Soviet Union