The building of temples and great cities without modern machinery, using astronomy to predict astrological cycles and plant crops and using their language to communicate and measure time are some of the Mayans most notable achievements.<span> During a 600-year period of time, which was from 300 A.D. until 900 A.D., the Mayans made many great achievements in science, communications, engineering and agriculture.</span>
The correct answer is C. Lyndon B. Johnson.
Lyndon B. Johnson urged the congress to pass the act of civil rights which were part of his vision for Great Society.
Lyndon was the 36th United States president from being a vice president. He was a leader of majority in the senate and representative in the united states.
He designed all legislation on the great society in domestic policy which expanded medicaid , medicare, public broadcasting, rural development, public services, civil rights, war on education, and aid to education.
During his administration many americans who were poor were raised up to poverty line.
Racial discrimination for public facilities were banned because of the bill of civil rights which as signed in to law by Lyndon.
C) Rally leaders were illegally arrested and convicted is not an accurate description of the Haymarket Square incident. Some men were arrested for carrying out the planning and construction of a bomb which was thrown and killed some policemen. Americans were in favor of defending the rights of workers and for them to be able to demonstrate and the rally had started as peaceful.
Tehran, Iran (ignore these extra characters)
