Astronaut youngest person to fly in space is Gherman Titov, who was 25 years old when he flew Vostok 2. (Titov was also the first person to suffer space sickness). The oldest person who has flown in space is John Glenn, who was 77 when he flew on STS-95. 438 days is the longest time spent in space, by Russian Valeri Polyakov. As of 2006, the most spaceflights by an individual astronaut is seven, a record held by both Jerry L. Ross and Franklin Chang-Diaz. The farthest distance from Earth an astronaut has traveled was , when Jim Lovell, Jack Swigert,
Chinese as a foreign language "Arte de la Lengua Mandarina" was published in Canton in 1703. This grammar was only sketchy, however. The first important Chinese grammar was Joseph Henri Marie de Prémare's "Notitia linguae sinicae", completed in 1729 but only published in Malacca in 1831. Other important grammar texts followed, from Jean-Pierre Abel-Rémusat's "Élémens" (sic) "de la grammaire chinoise" in 1822 to Georg von der Gabelentz's "Chinesische Grammatik" in 1881. Glossaries for Chinese circulated among the missionaries from early on. Robert Morrison's "A Dictionary of the Chinese Language" (1815-1823), noted for its fine printing, is one of the first important Chinese dictionaries for the