At what point in the u. s history do you think people became most concerned about abolishing discrimination based on race?

"[A] bill of rights is what the people are entitled to against every government on earth, general or particular, and what no just government should refuse." 
       - Thomas Jefferson, December 20, 1787

In the summer of 1787, delegates from the 13 states convened in Philadelphia and drafted a remarkable blueprint for self-government -- the Constitution of the United States. The first draft set up a system of checks and balances that included a strong executive branch, a representative legislature and a federal judiciary.

The Constitution was remarkable, but deeply flawed. For one thing, it did not include a specific declaration - or bill - of individual rights. It specified what the government could do but did not say what it could not do. For another, it did not apply to everyone. The "consent of the governed" meant propertied white men only.

The absence of a "bill of rights" turned out to be an obstacle to the Constitution's ratification by the states. It would take four more years of intense debate before the new government's form would be resolved. The Federalists opposed including a bill of rights on the ground that it was unnecessary. The Anti-Federalists, who were afraid of a strong centralized government, refused to support the Constitution without one. 

In the end, popular sentiment was decisive. Recently freed from the despotic English monarchy, the American people wanted strong guarantees that the new government would not trample upon their newly won freedoms of speech, press and religion, nor upon their right to be free from warrantless searches and seizures. So, the Constitution's framers heeded Thomas Jefferson who argued: "A bill of rights is what the people are entitled to against every government on earth, general or particular, and what no just government should refuse, or rest on inference."

The American Bill of Rights, inspired by Jefferson and drafted by James Madison, was adopted, and in 1791 the Constitution's first ten amendments became the law of the land.