What you are describing is the system of checks and balances.
In the United States there is a system of checks and balances. In our federal government, we have three different branches including the executive, legislative, and judicial. In our system, the executive branch consists of the president while the legislative branch consists of the Senate and House of Representatives. These different branches all have the ability to check the other branches. This ensures that no one branch or individual will gain too much power.
I believe the answer is Barbed Wire.
Befor the inventions of barbed wire, the Cattles are let to roam freely across the plains and the owners are required to pay a lot of cowboys to supervise them so they didn't go missing. Witht he invention of barbed wire, they can keep the cattle in a secure place without supervision.
Athens allowed all citizens to vote, Rome was just republic !
I think <span>The axis powers were made up of coalition of countries that opposed the allied powers in World War II </span>
In 1972, Steinem and feminists such as Congresswoman Bella Abzug, Congresswoman Shirley Chisholm, and feminist Betty Friedan formed the National Women's Political Caucus. It continues to support gender equality and to ensure the election of more pro-equality women to public office.