Why did Tennessee adopt a new constitution in 1870?

Tennessee adopted a new constitution in 1870 primarily to comply with the requirements of the Reconstruction Acts following the Civil War. The previous constitution was deemed incompatible with the changes brought about by the war and the abolition of slavery. The new constitution aimed to re-establish the state government, incorporate civil rights for formerly enslaved people, and facilitate Tennessee's readmission to the Union. Additionally, it sought to address issues of governance, education, and public welfare in the post-war context.