Input: Gregorian calendar
Ancient tables provided the sun's mean longitude. Christopher Clavius, the architect of the Gregorian calendar, noted that the tables agreed neither on the time when the sun passed through the vernal equinox nor on the length of the mean tropical year. Tycho Brahe also noticed discrepancies. The Gregorian leap year rule (97 leap years in 400 years) was put forward by Petrus Pitatus of Verona in 1560. He noted that it is consistent with the tropical year of the Alfonsine tables and with the mean tropical year of Copernicus (De revolutionibus) and Reinhold (Prutenic tables). The three mean tropical years in Babylonian sexagesimals as the excess over 365 days (the way they would have been extracted from the tables of mean longitude) were 14,33,9,57 (Alphonsine), 14,33,11,12 (Copernicus) and 14,33,9,24 (Reinhold). All values are the same to two places (14:33) and this is also the mean length of the Gregorian year. Thus Pitatus' solution would have commended itself to the astronomers.

When did Pitatus offer his solution to the leap year problem?
Output: 1560

Input: United States Army
The War of 1812, the second and last American war against the United Kingdom, was less successful for the U.S. than the Revolution and Northwest Indian War against natives had been, though it ended on a high note for Americans as well. After the taking control of Lake Erie in 1813, the Americans were able to seize parts of western Upper Canada, burn York and defeat Tecumseh, which caused his Indian Confederacy to collapse. Following ending victories in the province of Upper Canada, which dubbed the U.S. Army "Regulars, by God!", British troops were able to capture and burn Washington. The regular army, however, proved they were professional and capable of defeating the British army during the invasions of Plattsburgh and Baltimore, prompting British agreement on the previously rejected terms of a status quo ante bellum. Two weeks after a treaty was signed (but not ratified), Andrew Jackson defeated the British in the Battle of New Orleans and became a national hero. Per the treaty both sides returned to the status quo with no victor.

Who did the U.S. defeat to collapse the Indian Confederacy?
Output: Tecumseh

Input: Greece
The Greek national football team, ranking 12th in the world in 2014 (and having reached a high of 8th in the world in 2008 and 2011), were crowned European Champions in Euro 2004 in one of the biggest upsets in the history of the sport and became one of the most successful national teams in European football, being one of only nine national teams to have won the UEFA European Championship. The Greek Super League is the highest professional football league in the country comprising eighteen teams. The most successful are Olympiacos, Panathinaikos, AEK Athens and PAOK.

Greek was crowned the European champions in what event?
Output: Euro 2004

Input: 2008 Summer Olympics torch relay
The 2008 Summer Olympics torch relay was run from March 24 until August 8, 2008, prior to the 2008 Summer Olympics, with the theme of "one world, one dream". Plans for the relay were announced on April 26, 2007, in Beijing, China. The relay, also called by the organizers as the "Journey of Harmony", lasted 129 days and carried the torch 137,000 km (85,000 mi) – the longest distance of any Olympic torch relay since the tradition was started ahead of the 1936 Summer Olympics.

How many days did people carry the Olympic torch before the 2008 Summer Olympics?
Output:
129 days