Answer :
The year 1787 was most important when discussing the events which include the writing the U.S constitution
Explanation:
It was through the article of confederation that the constitution grew up and from may 1787 to September many alternatives were also developed and the drafted constitution was submitted on 1787 and they got the approval also in the same month
Following this the Bill of Rights was taken up and was immediately put up and the new government began in the New York city and the articles of the confederation dissolved itself