Why did jefferson address the declaration of independence to the “opinions of mankind”

He wanted to emphasize free speech, is the right answer.

Explanation:

Thomas Jefferson, in the opening of the Declaration of Independence, records that "a decent respect to the views of mankind expects that they should reveal the reasons which force them to the division." This expression is involved in the introduction because it proves that the representatives of the Second Continental Congress perceived that it was essential to justify their intentions for claiming independence. By this phrase, Jefferson is recognizing that the rest of the world will have judgments about the Americans' detachment from Great Britain and that the full document would present an illustration of the grounds for the separation.

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

after the roman empire, the catholic church began to unify by taking on many duties of a government.