sanitary napkins

In today's life, sanitary napkins are no longer strange. But have you ever wondered when they appeared, who invented them? And before sanitary napkins, what did women use to

World War I brought much suffering to human history, but it also brought us many indispensable inventions.

Here are a few stories about the origins of unexpectedly invented items - which are familiar to us.

Tampon (a type of women's sanitary napkins) will be the newest product to be applied to high technology.