The first plastic was made in 1907 

50 different kinds of plastic

Glitter contains plastic

2 evidence:

“Today there are more than 50 kinds of plastic and in the past 100 years, its invention has changed the world as we know it. (National Geographic).”

“The first synthetic plastic was made in 1907 when a Belgian named Leo Baekeland invented Bakelite in a lab in New York (National Geographic).”