That's been an annual irk for me for decades even though I secretly consider the birth of our nation as being on December 15th, 1791:
"On December 15, 1791, Virginia became the 10th of 14 states to approve 10 of the 12 amendments, thus giving the Bill of Rights the majority of state ratification necessary to make it legal. Of the two amendments not ratified, the first concerned the population system of representation, while the second prohibited laws varying the payment of congressional members from taking effect until an election intervened. The first of these two amendments was never ratified, while the second was finally ratified more than 200 years later, in 1992."
The interval between July 4th 1776 and December 15 1791 I regard as kind of a "gestation period," with the *expletive deleted*ing of King George in 1776 as the "moment of conception."
Terry, 230RN