This document was complete in 1787:
the Declaration of Independence
the Articles of Confederation
the Constitution
the Gettysburg Address

Respuesta :

It would be the "Constitution" that was completed in 1787, since this came after both the Declaration of Independence and the Articles of Confederation, but before the Gettysburg Address. 

the Constitution

The US began with a government based on the Articles of Confederation. After it became apparent the Articles were not working, the government formed a convention to revise the Articles. However, the Articles required unanimous support to create any change, so the Founders decided to create a new document. Members of the states created a new document, the Constitution, in 1787 and then sent the document to be ratified by the states. It was ratified in 1788 and the new government began operating in March of 1789.