On this day in history in Russia, the February Revolution (known as such because of Russia's use of the Julian calendar) begins on this day in 1917, when riots and strikes over the scarcity of food erupt in Petrograd (now St. Petersburg).
Demonstrators clamoring for bread took to the streets of the Russian capital of Petrograd. Supported by 90,000 men and women on strike, the protesters clashed with police, refusing to leave the streets.
Three days after the riots began and Russian army troops were sent to quell the protests, the troops turned against the Czar and became part of the protest. The imperial government was forced to resign and Nicolas abdicated his throne, formally ending over four centuries of Czarist rule in Russia.
On March 9, 1916, Germany declared war on Portugal, who earlier that year honored its alliance with Great Britain by seizing German ships anchored in Lisbon's harbor.
When World War I began in 1914, Portugal was a fledgling democratic republic, and newly elected president Manuel JosÉ de Arriaga was anxious about the security of Portugal's colonial holdings in Angola and Mozambique but desperate to remain neutral in the war.
In order to secure international support for its authority in Africa, Portugal begrudgingly entered the war on the side of Britain and the Allies. Its participation was at first limited to naval support, but by February of 1917, Portugal had 50,000 men stationed on the Western Front.