1776 is a musical with music and lyrics by Sherman Edwards and a book by Peter Stone. The show is based on the events leading up to the signing of the Declaration of Independence, telling a story of the efforts of John Adams to persuade his colleagues to vote for American independence and to sign the document. The show premiered on Broadway in 1969 where it received acclaim and won three Tony Awards, including Best Musical. The original production starred William Daniels as Adams, Ken Howard as Thomas Jefferson, and Howard Da Silva as Benjamin Franklin.

In 1972, it was made into a film adaptation, with Daniels, Howard, and Da Silva reprising their roles. It has received three New York revivals: on Broadway in 1997, an Encores! concert in 2016, and a 2022 Broadway production in which the racially diverse cast was entirely made up of people who identify as female, trans, or non-binary.

In 1925, Rodgers and Hart wrote a Broadway musical about the American Revolution called Dearest Enemy. In 1950, another musical about the Revolution was presented on Broadway, titled Arms and the Girl, with music by Morton Gould, lyrics by Dorothy Fields, and book by Herbert Fields, Dorothy Fields and Rouben Mamoulian, the show's director.

Sherman Edwards, a writer of pop songs with several top 10 hits in the late 1950s and early '60s, spent several years developing lyrics and libretto for a musical based on the signing of the Declaration of Independence. Edwards recounted that "I wanted to show [the founding fathers] at their outermost limits. These men were the cream of their colonies. ... They disagreed and fought with each other. But they understood commitment, and though they fought, they fought affirmatively." Producer Stuart Ostrow recommended that librettist Peter Stone collaborate with Edwards on the book of the musical. Stone recalled,

The minute you heard ["Sit Down, John"], you knew what the whole show was. ... You knew immediately that John Adams and the others were not going to be treated as gods or cardboard characters, chopping down cherry trees and flying kites with strings and keys on them. It had this very affectionate familiarity; it wasn't reverential.

Adams, the outspoken delegate from Massachusetts, was chosen as the central character, and his quest to persuade all 13 colonies to vote for independence became the central conflict. Stone confined nearly all of the action to Independence Hall and the debate among the delegates, and featuring two female characters, Abigail Adams and Martha Jefferson, in the musical. After tryouts in New Haven, Conn., and Washington, D.C., the show opened on Broadway at the 46th Street Theatre on March 16, 1969. Peter Hunt directed.

NOTE: The show can be performed in one or two acts.

On May 8, 1776, the Second Continental Congress, convening in Philadelphia at present-day Independence Hall, proceeds with its business. John Adams, the widely disliked delegate from Massachusetts, is frustrated because Congress will not even debate his proposals on independence. The other delegates, preoccupied with the rising heat, implore him to "Sit Down, John." Adams denounces the do-nothing Congress ("Piddle, Twiddle, and Resolve"), then reads the latest missive to his loving wife Abigail, who speaks to him in his imagination ("Till Then"). Later, Adams meets delegate Benjamin Franklin, who suggests that, because Adams is unpopular, he should let another delegate propose a resolution on independence. Richard Henry Lee of Virginia enters, having been summoned by Franklin; Franklin persuades Lee to ask the Virginia House of Burgesses to authorize a pro-independence resolution ("The Lees of Old Virginia").