its as simple as overtime laws will change and new stuff happens
<span>The Richter scale (developed in 1935 by Charles F.
Richter) was themost known and standardized earthquake measurement. It is used
to rate the magnitude of an earthquake measuring the amount of energy it
released through the calculation of information from a seismograph. The range
of 2.0 to 7.0 would cause damaged. Reading below 2.0 are called microquakes.</span>
<span>Affrican American win
greater political rights betwwen 1920 and 1960 Through the Civil Rights
Movement; which involved non-violent protests, speeches and Supreme Court
battles. These actions eventually led to the passing of the Civil Rights Act of
1964 and the Voting Rights Act of 1965.</span>