What state existed from 1861, when King Victor Emmanuel II of Sardinia was proclaimed King of Italy, was the subject to the plotting of  an insurrection in Italian Eritrea by the government of Ethiopia?
Battle of Halai The Battle of Halai, or the Battle of Halay, which took place in December 1894, was one of the opening battles of the First Italo-Ethiopian War. In the 1890s, the government of Ethiopia began plotting an insurrection in Italian Eritrea to push back against Italian encroachment on their country. On December 15, 1894, Bahta Hagos, the "chief of Okule-Kasai province in northern Tigré," launched a rebellion against the Italian authorities. On December 18, a force of Italian troops, led by Major Pietro Toselli discovered that a small Italian fort at Halai (garrisoned by 220 men) was being besieged by 1,600 of Bahta's rebels. Toselli attacked with 1,500 men, hitting his enemy (who "had almost taken the fort") in the rear. Bahta was killed in the ensuing battle and his army fell apart. In total, eleven Italians were killed and twenty-two wounded in the action.
Sicilian revolution of 1848 The Sicilian revolution of independence of 1848 occurred in a year replete with revolutions and popular revolts. It commenced on 12 January 1848, and therefore was the very first of the numerous revolutions to occur that year. Three revolutions against Bourbon rule had previously occurred on the island of Sicily starting from 1800: this final one resulted in an independent state surviving for 16 months. The constitution that survived the 16 months was quite advanced for its time in liberal democratic terms, as was the proposal of an Italian confederation of states. It was in effect a curtain raiser to the end of the Bourbon kingdom of the Two Sicilies which was started by Giuseppe Garibaldi's Expedition of the Thousand in 1860 and culminated with the Siege of Gaeta of 1860–1861.