Question: Marie Depage was killed during an event that occurred in what year?

Context paragraphs:
Marie Depage: Marie Pauline Depage (23 September 1872 – 7 May 1915) was a Belgian nurse, and wife of Dr Antoine Depage.  She was killed in the sinking of the RMS "Lusitania", and she is commemorated in Belgium alongside the British nurse Edith Cavell

2004 Grozny stadium bombing: The 2004 Grozny stadium bombing occurred on 9 May 2004 when a bomb exploded in the Dynamo stadium in the Chechen capital, Grozny, killing 10 people including the republic's president Akhmad Kadyrov and another 100 people were wounded.  Kadyrov's election was considered by many to be by a fraudulent vote.  The explosion was caused by a bomb planted underneath the concrete floor of the VIP podium and occurred at 10:35am during a parade and concert in Groznyy celebrating the 59th anniversary of the victory of Germany in World War 2.  The blast tore a hole in the section designated for dignitaries.  It was not clear if the explosion was specifically targeting Kadyrov or whether it would have occurred regardless of his presence, as he was not officially scheduled to be at this event.  Khussein Isayev, chairman of the Republic's state council, and Adlan Khasanov, a reported for Reuters, were also killed in the blast.  Col. Gen. Valery Baranov, the commander of the Russian military in the northern Caucasus was gravely wounded.  Although estimates of total casualties varied, at least ten people were killed and around fifty more injured.  The numbers include many civilians and WW2 veterans who were also attending the celebrations.  Officials believe that the blast was detonated by remote control and was intentionally installed below the VIP section.  The bomb may have been planted some time ago during the recent renovations to the stadium.  Preliminary reports suggest that the bomb was equivalent to one ton of TNT.  The location of the bomb made it impossible for existing equipment to detect.  The type of explosive appeared identical to one used to blow up the military parade two years ago in the Dagestani city of Kaspiysk.  Rescue workers prevented two other blasts in the stadium.  They were able to defuse another landmine and an additional explosive device equipped with a timer set to go off 30 minutes after the first explosion.

Glina massacres: The Glina massacres were killings of Serb peasants in the town of Glina in the Independent State of Croatia (NDH) that occurred between May and August 1941, during World War II.  The first wave of massacres in the town began on 11 or 12 May 1941, when a band of Ustaše led by Mirko Puk murdered a group of Serb men and boys in a Serbian Orthodox church before setting it on fire.  The following day, approximately 100 Serb males were murdered by the Ustaše in the nearby village of Prekopi.  Estimates of the overall number of Serbs killed from 11–13 May range from 260 to 417.  Further killings in Glina occurred between 30 July and 3 August of that same year, when 700–2,000 Serbs were massacred by a group of Ustaše led by Vjekoslav Luburić.  Ljubo Jednak, the only survivor of these killings, went on to testify at the trials of the several prominent figures in the NDH after the war.  Puk was captured by British forces in 1945 while attempting to flee to Austria and was extradited to Yugoslavia the following year, where he committed suicide.  Luburić escaped Yugoslavia after the war and moved to fascist Spain, where he was killed by a person generally assumed to be an agent of the Yugoslav State Security Service.

June 1974 Great Plains tornado outbreak: The June 1974 Great Plains tornado outbreak was a significant tornado outbreak that affected portions of the southern Great Plains and the Upper Midwest on June 8, 1974.  The outbreak produced 36 tornadoes, at least 19 of them significant or intense, and is the second-deadliest June tornado event in Oklahoma history, with 16 deaths reported in the state, second only to the 35 people killed by an F4 tornado on June 12, 1942, in Oklahoma City.  The deadliest tornado of the outbreak was a powerful F4 that struck the town of Drumright in Oklahoma, killing 14 people, 12 of whom were killed at Drumright.  Another deadly and destructive F4 tornado struck the town of Emporia in Kansas, killing six more people.  The outbreak also produced two F3 tornadoes in the Tulsa metropolitan area that killed two people and, combined with flooding, produced the costliest natural disaster in that city's history up to that time—a disaster worth $30,000,000 (1974 USD).  Additionally, the outbreak produced non-tornadic winds in the city which reached 100 kn (115 mi/h ) for several minutes.  In addition to confirmed tornadoes, a possible tornado occurred at 8:15 p.m. CST 5 mi south of Cullison in Kansas, producing intermittent damage, but is not officially listed as a tornado.

Sinking of the RMS Lusitania: The sinking of the Cunard ocean liner RMS "Lusitania" occurred on Friday, 7 May 1915 during the World War 1, as Germany waged submarine warfare against the United Kingdom which had implemented a naval blockade of Germany.  The ship was identified and torpedoed by the German U-boat "U-20" and sank in 18 minutes.  The vessel went down 11 mi off the Old Head of Kinsale, Ireland, killing 1,198 and leaving 761 survivors.  The sinking turned public opinion in many countries against Germany, contributed to the American entry into World War I and became an iconic symbol in military recruiting campaigns of why the war was being fought.

2014–2017 Venezuelan protests: In 2014, a series of protests, political demonstrations, and civil insurrection began in Venezuela due to the country's high levels of urban violence, inflation, and chronic shortages of basic goods attributed to economic policies such as strict price controls.  While protests occurred in January 2014, after the murder of actress and former Miss Venezuela Mónica Spear, mass protesting began in earnest that February following the attempted rape of a student on a university campus in San Cristóbal.  Subsequent arrests and killings of student protestors spurred their expansion to neighboring cities and the involvement of opposition leaders.  The year's early months were characterized by large demonstrations and violent clashes between protestors and government forces that resulted in nearly 4,000 arrests and 43 deaths, including both supporters and opponents of the government.  Toward the end of 2014, and into 2015, continued shortages and low oil prices caused renewed protesting.  By 2016, protests occurred following the controversy surrounding the 2015 Venezuelan parliamentary elections as well as the incidents surrounding the 2016 recall referendum.  On 1 September 2016, the largest demonstration of the protests occurred, with over 1 million Venezuelans, or over 3% of the entire nation's population, gathered to demand a recall election against President Maduro, with the event being described as the "largest demonstration in the history of Venezuela".  Following the suspension of the recall referendum by the government-leaning National Electoral Council (CNE) on 21 October 2016, the opposition organized another protest which was held on 26 October 2016, with over 1.2 million Venezuelans participating.  After some of the largest protests occurred in a late-2016, Vatican-mediate dialogue between the opposition and government was attempted and ultimately failed in January 2017.  Concentration on protests subsided in the first months of 2017 until the 2017 Venezuelan constitutional crisis occurred when the pro-government Supreme Tribunal of Justice of Venezuela attempted to assume the opposition-led National Assembly and removed their immunity, though the move was reversed days later, demonstrations grew "into the most combative since a wave of unrest in 2014".  The protests are considered to be the Mother of all Protests.

Tornado outbreak of April 20–22, 1912: The April 20–22, 1912 tornado outbreak was a large tornado outbreak that affected portions of the High Plains, the Upper Midwest, and the Southern United States, including portions of the Dallas–Fort Worth metroplex, from April 20–22, 1912.  The severe-weather event produced at least 31 tornadoes, at least nine—and possibly 10 or more—of which were violent tornadoes, all of which rated F4 on the Fujita scale.  Powerful tornado activity was distributed from the Great Plains to South Carolina.  The first day of the outbreak occurred on April 20 and produced numerous strong to violent tornadoes across parts of North Texas, Oklahoma, and Kansas.  A second day of intense tornadoes occurred on April 21, with several strong to violent tornadoes across Illinois and Indiana.  The final day, April 22, produced an F4 tornado in Georgia as well.  The entire outbreak killed 56 people, and was followed days later by another intense tornado outbreak on April 27.  That outbreak killed about 40 people, mostly in Oklahoma.  Both outbreaks produced a combined total of nine F4 tornadoes in Oklahoma alone.

1988 Armenian earthquake: The 1988 Armenian earthquake, also known as the Spitak earthquake (Armenian: Սպիտակի երկրաշարժ "Spitaki yerkrašarž"), occurred on December 7 at with a surface wave magnitude of 6.8 and a maximum MSK intensity of X ("Devastating").  The shock occurred in the northern region of Armenia (then part of the Soviet Union) which is vulnerable to large and destructive earthquakes and is part of a larger active seismic belt that stretches from the Alps to the Himalayas.  Activity in the area is associated with tectonic plate boundary interaction and the source of the event was slip on a thrust fault just to the north of Spitak.  The complex incident ruptured multiple faults, with a strike-slip event occurring shortly after the initiation of the mainshock.  Between 25,000 and 50,000 were killed and up to 130,000 were injured.

October 1999 Mexico floods: In October 1999, severe flooding affected portions of eastern Mexico and Central America.  Rainfall in September preceded the primary event in Mexico, which moistened soils.  On October 4, Tropical Depression Eleven developed in the Gulf of Mexico, which drew humidity from the gulf and the Pacific Ocean to produce torrential rainfall in mountainous regions of eastern Mexico, reaching 43.23 in in Jalacingo, Veracruz.  This was the third-highest tropical cyclone-related rainfall total in Mexico from 1980-2006, and the event caused the highest rainfall related to tropical cyclones in Veracruz, Hidalgo, and Puebla.  In some locations, the daily rainfall represented over 10% of the annual precipitation total.  The heaviest rainfall occurred in mountainous regions that were the mouths of several rivers.  A broad trough absorbed the depression on October 6, and rainfall continued for the next few days.  Additional rainfall occurred in Tabasco state on October 18.  The floods were estimated as a 1 in 67 year event in one location, although such floods are expected to affect eastern Mexico twice per century, the last time being 1944.

FIS Nordic World Ski Championships 1950: The FIS Nordic World Ski Championships 1950 took place during February 1–6, 1950 in Lake Placid, New York, United States and Rumford, Maine, United States.  This was Lake Placid's second time hosting the championships after having done so at the 1932 Winter Olympics.  It also marked the first time after World War II the event took place after the Winter Olympics in a non-Olympic year (St. Moritz, Switzerland hosted the 1948 Winter Olympics two years earlier), the second time the world championships occurred outside Europe, the first time they had occurred outside Europe in a non-Olympic year, and the only time the United States has hosted the event in a non-Olympic year.  The ski-jumping events were held at Lake Placid, while the cross-country skiing events (originally planned to also be held at Lake Placid) were moved to Rumford due to insufficient snow.

Supporting paragraphs: Marie Depage Sinking of the RMS Lusitania
Answer: 1915