Who would you say are some of the people who truly changed the world? What did they do?

Helen Keller- helped deaf people

Jane Goodall- activist for environmental protection and kindness to animals.

Louis Pasteur- vaccination for rabies and pasteurize milk

Bill Gates- first computer

William Shakespeare-play writer and he added hundreds of words to the dictionary 

Karl Benz for inventing the first gasoline powered automobile.

Ransom Olds for inventing the assembly line.

Henry Ford for revolutionizing  those two inventions for mass production and affordability.

Malala Yousafzai

Ang San Suu Kyi

Wangari Muta Maathai

Dr. Elizabeth Blackwell

Jonas Salk

Marie Stopes

Florence Nightingale

Susan B. Anthony

Because its a beautiful day, my tea is iced and my feet hurt, allow me to bloviate on some world changers:

Genghis Khan- probably no one outside of religious figures singlehandedly changed the world more. Approx 1 in every 200 people alive can trace their genetics to Tamujin, himself.

Thomas Jefferson- no one affected the landscape (in every sense) of North America more than Jefferson. One of my personal idols. 

Steve Jobs- visionary who built a garage computer maker into the world's richest company. His iPhone changed everything.

Martin Luther- broke the theocracy of the corrupt Church. Set the Great Enlightenment period in motion. 

All those previously mentioned were great in their own right. However one person who changed this world singlehandedly (per se), whose actions have effected each and every one of us was Osama Bin Laden. What he did I need not elaborate.

Well Z, you didn't specifically say WHO'S world and a time frame so I am gonna be ornery and answer outside the box. 😉

My children of course. They changed my world for the better forever! 😊