Today in US history, on March 31: Pivotal moments reflecting America’s evolution in policy, society, and global reach

March 31 in US history brings together a range of defining moments that span early calls for equality, diplomatic expansion, domestic reform, and the end of a naval era. From a revolutionary-era appeal for women’s rights to strategic territorial gains and landmark New Deal programs, the date reflects key developments that have shaped the nation’s political, social, and military trajectory over time.

1776: Abigail Adams urges rights for women

In 1776, Abigail Adams wrote to her husband, John Adams, urging him to “remember the ladies” in the formation of the new nation’s laws. Her appeal, addressed to a key figure in the American Revolution, is regarded as an early call for women’s rights in the United States.

1854:Treaty of Kanagawa opens Japan to US trade

US naval officer Matthew Perry signed the Treaty of Kanagawa, opening Japanese ports to American trade after decades of isolation. The agreement marked a significant step in Japan’s opening to the West and expanded US influence in the Pacific.

1917: US acquires the Virgin Islands from Denmark

In 1917, the United States formally took possession of the US Virgin Islands from Denmark. The transfer marked a strategic expansion of US territory in the Caribbean and strengthened its naval and military presence in the region.

1933: Civilian Conservation Corps established under the new deal

In 1933, President Franklin D. Roosevelt created the Civilian Conservation Corps as part of the New Deal. The program aimed to provide jobs for unemployed men while advancing conservation and public works efforts during the Great Depression.

1992: USS Missouri decommissioned, closing the era of battleships

In 1992, the USS Missouri (BB-63), the last active US battleship, was officially decommissioned, marking the end of an era in naval warfare. The ship had played a prominent role in World War II and later conflicts before being retired from active service.