Kickball is a playground game and competitive league game, similar to baseball

Baseball

Baseball is a bat-and-ball sport played between two teams of nine players each. The aim is to score runs by hitting a thrown ball with a bat and touching a series of four bases arranged at the corners of a ninety-foot diamond...

, invented in the United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 in the first half of the 20th Century. Kickball may also be known as kick baseball, base soccer, soccer-base, or soccer-baseball. It is essentially baseball where players kick the ball to bat it instead of using bats (this makes it more accessible to younger ones).
Kickball, originally called "Kick Baseball", was invented around 1917 by Nicholas C Seuss; Supervisor of Cincinnati Park Playgrounds in Cincinnati, Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

.
Around 1920–1921 "Kick Ball" was used by physical education teachers in Public Schools to teach young boys and girls the basics of baseball.