1866Sep, 22
Battle of Curupayty in the Paraguayan War.
The Battle of Curupayty was a key battle in the Paraguayan War. On the morning of September 22, 1866, the joint force of Brazilian, Argentine, and Uruguayan armies attacked Paraguayan fortified trenches on Curupaity. The Paraguayans were led by General José E. Díaz. This position was held by 5,000 men and 49 cannons, some of them in hidden places out of the attackers view. The Brazilian Navy gave support to the 20,000 assailants, but the ships had to keep some distance from the guns at the fortress of Humaitá, which led to the lack of accuracy and impact of the ship's fire. The navy's failure was crucial at the later ground battle result.: 61–62 The Paraguayans were also successful in misleading their foes: a trench drew most of the Brazilian fire, but the Paraguayan troops were located elsewhere. Around 20 percent of the almost 20,000 allied (Brazilian and Argentine) troops involved in the attack were lost; Paraguay lost less than a hundred men. The utter failure resulted in the change of the Allied command. Paraguay's biggest success in the ultimately disastrous war was limited because its military leader Francisco Solano López did not counterattack the defeated Allies; not even a general as celebrated as Díaz would attack without López's orders. Ultimately, the battle of Curupayty was merely a sidenote and temporary success in what would eventually become a near-extermination of the Paraguayan people.
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Events on 1866
- 27Mar
Civil Rights Act of 1866
President Andrew Johnson vetoes the Civil Rights Act of 1866. His veto is overridden by Congress and the bill passes into law on April 9. - 2Jun
Battle of Ridgeway
The Fenians defeat Canadian forces at Ridgeway and Fort Erie, but the raids end soon after. - 20Jul
Battle of Lissa (1866)
Austro-Prussian War: Battle of Lissa: The Austrian Navy, led by Admiral Wilhelm von Tegetthoff, defeats the Italian Navy near the island of Vis in the Adriatic Sea. - 20Aug
Andrew Johnson
President Andrew Johnson formally declares the American Civil War over. - 19Oct
Mantua
Austria cedes Veneto and Mantua to France, which immediately awards them to Italy in exchange for the earlier Italian acquiescence to the French annexation of Savoy and Nice.