How long did the Constitution of 1777 remain in effect?

The Constitution of 1777 remained in effect for 12 years, which is why the answer is correct. This constitution was significant as it was the first governing document of Georgia, adopted during the American Revolutionary War. It established a framework for government and provided a structure for legislative, executive, and judicial branches. However, due to various challenges, including issues related to governance and changing political landscapes, it became apparent that a new constitution was needed. Consequently, the Constitution of 1777 was replaced in 1789 by a new constitution, marking the end of its 12-year period of effectiveness. This transition reflects the evolving nature of governance during that time, as states were still figuring out the best ways to govern themselves post-independence.