It was controversial mainly for two reasons: Because it involved the abortion attempt of a young woman who was a physical and emotions abuse victim, who had also lied to authorities in Texas in order to get a legal abortion. Public opinion was largely divided on the issue. Conservatives blamed the woman and Democrats blamed the existing laws that prevented women from aborting.
The second reason was judicial: many people considered that the Constitution was being misinterpreted to adjust to shifting social mores. For these dissenters, there was no legal justification of any kind to authorize abortion as a Constitutional right.
In Brown vs Board of Education the Supreme Court that segregation in schools was NOT constitutional. This is important because it marked the end of the “separate but equal” idea that lasted for nearly a century.
The Great Wall of China's history began in the Spring and Autumn Period (770–476 BC), was first completed in the Qin Dynasty (221–206 BC), and was last rebuilt as a defense in the Ming Dynasty (1368–1644).