1 Using mail to send kids

One can not even think of sending kids like we send letters through the mail, but as weird as it may sound this is extremely true. During the beginning of the 20th century, it was a common practice in America to send their kids through the mail and that used to cost them just 15 cents.
2. Treatment using Cocaine

Cocaine is famous worldwide as the “most harmful drug”, however, people didn’t treat it as a harmful substance 100 years ago. Long back it was available readily and that too without any prescriptions and was used to treat many problems like coughs, toothaches etc.