Set during the war of independence of the "articles of Confederation" was shelved due to the existence of various problems. In May 25, 1787 the state representatives held a constitutional convention in Philadelphia in September 17th, established in 1787 USA constitution, the Federal Constitution, the constitution went into effect in 1788 June.

The constitution embodies the principle of separation of three powers, safeguard the people's democratic rights, has great significance. However, the Constitution does not require the abolition of slavery, which is one of its anti democratic performance. In fact, during the war of independence, democratic representative has proposed several times before the abolition of slavery, was not successful. We will ask "1787 Constitution" and the "Declaration of independence" is not emphasized human rights? How will the Americans draw your own mouth? Here, I simply talk about why America constitution of 1787 did not abolish slavery.

First, from the military point of view, USA was with British war, the new USA needs of the majority of slaves and the strength to fight the British, and this is bound to have some problems in the southern slaveholders benefit, and this benefit is the abolition of slavery, the victory of the war for independence, this compromise. Is necessary.

But in politics, 1783 mutual consultation in the States and compromise, established American constitution and the federal government, then discussed the abolition of slavery, but because of some southern states against, so to reach a compromise, slavery in the south, or the federal government will not be set up. For USA government, the most important is to ensure that the national independence and unity, compared with the issue of slavery is secondary to many, but was not developed to seriously affect the America capitalist development degree.

The main reason is in the economy. Slavery is a product of the development of international capitalism, is the foundation America capitalism, history of the development of the America once played an important role. Marx pointed out: "the same machine, credit and so on, direct slavery is base of bourgeois industry, no slavery no cotton. No modern cotton industry would not be envisaged, the colonial slavery has value, colonial estate gave birth to the world trade, world trade is a necessary condition for large industrial, visible slavery is one of the most important economic category." That is to say, the development of slavery had driven capitalism economy. But after the war the North although most declared for the abolition of slavery, but not everyone agreed with. North bourgeoisie merchant bourgeoisie, especially with the Southern cotton exports or with the southern mainland market related large merchants and bankers, and the slave owners of the south is a matter of common. And the most important is that both sides in the north be well-matched in strength, the bourgeois are not developed fully, the southern slavery has not yet formed a deadly threat to the north. In this case, the bourgeoisie to make concessions to the slave class, this is understandable. Can say, the economic interest is the premise of all.

Finally, in the capitalist system, the slaves as southern slave owners of private property, it and the northern capitalists occupied land, machinery and other private property, with the same inviolability, therefore, the abolition of slavery violated the sanctity of private property, that is to say, the slave was not as a person look, they just goods, just property, which, in the so-called law is tenable.

Because of American war of independence leadership rests in the northern Great businessmen, industrialists and Southern plantation owners hands, so after the war of independence in 1787 was held in Philadelphia in the constitution, state representatives most represent their interests, even the bourgeois democracy activists are not included, not on behalf of said civilians and slaves. Therefore, apart from a few people put forward the abolition of slavery, the majority of people for their own interests are not in favor of.

American constitution of 1787 there is no reason to abolish slavery, politics is the northern part of the bourgeoisie to the unification of the country and the southern slaveholders compromise, while the economy is because slavery is not a barrier to the development of capitalist economy, and is conducive to the interests of some people. Of course, all this is temporary, 1860 the outbreak of the civil war is the best evidence, it was not developed to the point where not peaceful coexistence.

Above, is I think America 1787 Constitution abolished slavery, no reason.