True or False?

Uno was invented in 1971 by Merle Robbins, a barber from Ohio. Robbins had an argument with his son about the rules of the card game, Crazy Eights, and decided to make his own game afterwards! When he finally showed his family what he's invented, they loved it and printed the game as a pack of cards!

Hoover Dam was made with massive amounts of concrete (enough to build 3000 miles of road). In order to cool this concrete, a supersized fridge was invented. This machine dispensed up to a thousand tons of ice every day! The incredible refrigeration machine helped take off decades from the project’s timeline.

The earliest microscopes were called flea glasses because they were predominantly used to observe small insects such as fleas! These microscopes were simple in construction, using different shapes and sizes of glass with low power (6x to 10x). They were invented by the Romans.