(Canada, KNN News)

Two senior high school students quickly started a “Pink Shirt Day”

after a school bully picked on a boy classmate for wearing pink.

“The bully called him a girl.

He treated him terribly,” one student said angrily.

When two students, David and Travis, heard the news,

they e-mailed their classmates right away and asked them to wear pink to school.

“We couldn't stand it anymore,” said David.

The next day, David, Travis, and hundreds of other students in the same school

wore pink and said loudly, “Bullying stops here.”

“We should take bullying more seriously.

We must act now to stop bullying,” Travis said.

Now, “Pink Shirt Day” is Anti-Bullying Day in Canada.

Two young boys helped to change the world by their simple actions.