Why would the constitution refer to the institution of slavery at least three times?
1) the constitution does not refer to slavery
2) because slavery was crucial to the economy at the time
3) because Frederick Douglass was influencing the debate at the constitutional
convention
4) because George Washington and Thomas Jefferson wanted to free all the
enslaved.

The constitution referred to the institution of slavery at least three times because: 2) because slavery was crucial to the economy at the time.

Repetition is used for emphasis. As at the time when the constitution of the United States of America was drawn, slavery still had a stronghold in the nation.

The constitution is a guide on how activities in a nation are to operate legally.

So, since slavery was a vital aspect of the economy at the tie, the constitution must have mentioned it three times because of its importance to the economy.

Learn more about the constitution here:

link

2) because slavery was crucial to the economy at the time

Explanation:

Slavery in the United States was the legal institution of human chattel enslavement, primarily of Africans and African Americans, that existed in the United States of America from the beginning of the nation in 1776 until passage of the Thirteenth Amendment in 1865.

The Peculiar Institution.

During the course of the slave trade, millions of Africans became involuntary immigrants to the New World. Some African captives resisted enslavement by fleeing from slave forts on the West African coast. Others mutinied on board slave trading vessels, or cast themselves into the ocean .

Slavery was implicitly permitted in the original Constitution through provisions such as Article I, Section 2, Clause 3, commonly known as the Three-Fifths Compromise, which detailed how each slave state's enslaved population would be factored into its total population count

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hernan cortes;

explanation: