Question: How old was Marinetti when the futurism movement was founded? Passage 1:Although objects resembling lenses date back 4000 years and there are Greek accounts of the optical properties of water-filled spheres (5th century BC) followed by many centuries of writings on optics, the earliest known use of simple microscopes (magnifying glasses) dates back to the widespread use of lenses in eyeglasses in the 13th century. The earliest known examples of compound microscopes, which combine an objective lens near the specimen with an eyepiece to view a real image, appeared in Europe around 1620. The inventor is unknown although many claims have been made over the years. Several revolve around the spectacle-making centers in the Netherlands including claims it was invented in 1590 by Zacharias Janssen (claim made by his son) and/or Zacharias' father, Hans Martens, claims it was invented by their neighbor and rival spectacle maker, Hans Lippershey (who applied for the first telescope patent in 1608), and claims it was invented by expatriate Cornelis Drebbel who was noted to have a version in London in 1619. Galileo Galilei (also sometimes cited as compound microscope inventor) seems to have found after 1610 that he could close focus his telescope to view small objects and, after seeing a compound microscope built by Drebbel exhibited in Rome in 1624, built his own improved version. Giovanni Faber coined the name microscope for the compound microscope Galileo submitted to the Accademia dei Lincei in 1625 (Galileo had called it the "occhiolino" or "little eye").
 Passage 2:Priddis was raised in Manjimup, a country town in Western Australia's south-west region, but moved to Perth, the state's capital, as a teenager, playing at junior level for Sorrento–Duncraig. He represented Western Australia at both under-16 and under-18 level respectively, in addition to also making his senior debut for in the West Australian Football League (WAFL) as well, playing two games early in the 2003 season. Priddis became a regular in Subiaco's senior side during the 2004 season. He played 21 games, including Subiaco's win over in the Grand Final, en route to ultimately being named the WAFL's Rising Star at the end of the season. At the end of the season, he was offered a well-paid contract in the South Australian National Football League (SANFL), but turned it down on the advice of Subiaco's coach, Peter German. During the 2005 season, Priddis won Subiaco's best and fairest award, the Tom Outridge Medal, as well as also winning the Simpson Medal as Western Australia's best player in the state game against Queensland. He was subsequently selected by West Coast with the 31st pick in the 2006 Rookie Draft, but only after he had already been overlooked in three previous national drafts.
 Passage 3:Although born in Fondo or in the neighboring village of Malosco, according to other sources (in the Italian Trentino region), Depero grew up in Rovereto and it was here he first began exhibiting his works, while serving as an apprentice to a marble worker. It was on a 1913 trip to Florence that he discovered a copy of the paper Lacerba and an article by one of the founders of the futurism movement, Filippo Tommaso Marinetti. Depero was inspired, and in 1914 moved to Rome and met fellow futurist Giacomo Balla. It was with Balla in 1915 that he wrote the manifesto Ricostruzione futurista dell’universo ("Futurist Reconstruction of the Universe") which expanded upon the ideas introduced by the other futurists. In the same year he was designing stage sets and costumes for a ballet.

Output: 3