True or False?

With a total length of 21,196 kilometres, the Great Wall of China is the longest man-made structure in the world. The mighty bulwark was constructed over the course of five centuries and was intended to fend off nomadic tribes, most notably the Mongols. It did so with moderate success.

In the narrow-minded USA of the 1800s, Valentine’s Day was considered an obscenity. The Chicago Post Office even rejected 25,000 Valentine’s cards because they were deemed indecent!

Toyota is a Japanese car manufacturer whose longer name is Toyota Jidōsha kabushikigaisha. When they debuted their hybrid car, the Prius, in 1997, they went on to be praised for leading the industry in developing fuel-efficient cars. They now have more than 40 hybrid cars available.