You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

what is the first event mentioned?, Context: The Russian Revolution is the series of revolutions in Russia in 1917, which destroyed the Tsarist autocracy and led to the creation of the Soviet Union. Following the abdication of Nicholas II of Russia, the Russian Provisional Government was established. In October 1917, a red faction revolution occurred in which the Red Guard, armed groups of workers and deserting soldiers directed by the Bolshevik Party, seized control of Saint Petersburg (then known as Petrograd) and began an immediate armed takeover of cities and villages throughout the former Russian Empire.
Solution: Russian Revolution
Why? This is a good example, and the Russian Revolution is the first event mentioned.

New input: When did Broz's mother die?, Context: Josip Broz was born on 7 May 1892 in Kumrovec, in the northern Croatian region of Hrvatsko Zagorje in Austria-Hungary.[nb 1] He was the seventh child of Franjo and Marija Broz. His father, Franjo Broz (26 November 1860 – 16 December 1936), was a Croat, while his mother Marija (25 March 1864 – 14 January 1918), was a Slovene. His parents were married on 21 January 1891. After spending part of his childhood years with his maternal grandfather Martin Javeršek in the Slovenian village of Podsreda, he entered primary school in 1900 at Kumrovec, he failed the 2nd grade and graduated in 1905. In 1907 he moved out of the rural environment and started working as a machinist's apprentice in Sisak. There, he became aware of the labour movement and celebrated 1 May – Labour Day for the first time. In 1910, he joined the union of metallurgy workers and at the same time the Social-Democratic Party of Croatia and Slavonia. Between 1911 and 1913, Broz worked for shorter periods in Kamnik (1911–1912, factory "Titan"), Cenkov, Munich and Mannheim, where he worked for the Benz car factory; then he went to Wiener Neustadt, Austria, and worked as a test driver for Daimler.
Solution:
14 January 1918