On June 21 in …
1736 — Enoch Poor is born in Andover, MA. He becomes a brigadier general in the Revolutionary War and is instrumental in the Colonials’ victory at the Battle of Freeman’s Farm, the first of the Saratoga area battles.
1788 — New Hampshire ratifies the Constitution of the United States, becoming the ninth state.
1942 –- In the early days of World War II, a Japanese submarine surfaces near the Columbia River in Oregon, and fires 17 shells at nearby Fort Stevens.
1900 — During the Boxer Rebellion, an edict issued by the Empress Dowager Cixi declares war on the United States, Britain, Germany, France, and Japan.
2009 — Greenland and its 56,000 residents assumed full self-rule while remaining nominally a part of the Kingdom of Denmark.