Constitutional law, LAW FIRM, United States 1789 | Constiution of United States of America March 4, 1789 Legal Helpdesk Lawyers ON THIS DAY in 1789, the Constitution of the United States of America came into effect. Share this: Email a link to a friend (Opens in new window) Email Share on LinkedIn (Opens in new window) LinkedIn Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Pinterest (Opens in new window) Pinterest Share on Tumblr (Opens in new window) Tumblr Share on Reddit (Opens in new window) Reddit Print (Opens in new window) Print Share on Pocket (Opens in new window) Pocket Like Loading... Related