Explain how the number of terms for which a president may serve has. changed over time

Explanation:

The presidents you want to look into are

1. George Washington who refused to serve a third term thus setting the precedent of not serving more than 2 terms.

2. Theodore Roosevelt who wrestled with the prospect of a third term and then decided against doing and then wished he had (run for the 3rd term). He did try again after Taft served one term. Teddy ran under the Bullmoose banner as an independent. He was defeated by Woodrow Wilson who got 41% of the popular vote to Roosevelt's 27%.

3. Franklin Roosevelt who actually did run for 4 terms although he died in office in 1944. He was one of the great presidents of the 20th century and ranks highly among all presidents for what he accomplished.

In 1951, the 22nd Amendment was passed limiting the president's terms in office at 2.

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.