Question: When was person that nicknamed the Nürburgring's old track "The Green Hell" born?

Context paragraphs:
Monster from Green Hell: Monster from Green Hell is a 1957 science-fiction B movie originally shown as a double-feature with the 1957 film "The Brain from Planet Arous".  It was also distributed in 1958 on a double bill with the English-dubbed Japanese film "Half Human".

This Green Hell: This Green Hell is a 1936 British comedy film directed by Randall Faye and starring Edward Rigby, Sybil Grove and Richard Dolman.  It was made at Nettlefold Studios in Walton-on-Thames as a quota quickie for release by the American company RKO.

List of Nordschleife lap times (racing): The Nürburgring Nordschleife is a motor racing circuit in Germany.  Its over 20.8 km long old section dating from 1927, was truncated in 1982 as international championships had started to boycott the track after 1976.  The adjacent modern Nürburgring Grand Prix track was opened in 1984.  The two tracks can host events independently, or they can be combined, e. g. for the 24 Hours Nürburgring.  As a result, lap times have been set in racing events on numerous Nordschleife track variants ranging from less than the shortest 20.832 km to the current maximum of nearly 26 km .

Nürburgring: Nürburgring is a 150,000-capacity motorsports complex located in the town of Nürburg, Rhineland-Palatinate, Germany.  It features a Grand Prix race track built in 1984, and a much longer old "North loop" track which was built in the 1920s around the village and medieval castle of Nürburg in the Eifel mountains.  The north loop is 20.8 km long and has more than 300 metres (1,000 feet) of elevation change from its lowest to highest points.  Jackie Stewart nicknamed the old track "The Green Hell".

Joel Fluellen: Joel Fluellen (December 1, 1907 – February 2, 1990) was an American actor.  He appeared in the films "The Jackie Robinson Story", "Perils of the Jungle", "Duffy of San Quentin", "Sitting Bull", "Friendly Persuasion", "Monster from Green Hell", "The Decks Ran Red", "Porgy and Bess", "A Raisin in the Sun", "He Rides Tall", "Roustabout", "The Chase", "The Learning Tree", "The Great White Hope", "Skin Game", "Thomasine & Bushrod", "The Bingo Long Traveling All-Stars & Motor Kings", "Casey's Shadow" and "", among others.

Al Zimbalist: Alfred N. Zimbalist (March 3, 1910, Kiev, Russia – August 28, 1975, Los Angeles) was a producer of low-budget films such as "Robot Monster", "Monster from Green Hell", "Cat Women of the Moon", "Watusi" and "Baby Face Nelson".

Jackie Stewart: Sir John Young Stewart, {'1': ", '2': ", '3': ", '4': "} (born 11 June 1939) is a British former Formula One racing driver from Scotland.

Green Hell (film): Green Hell is a 1940 American jungle adventure film directed by James Whale, starring Douglas Fairbanks Jr. and Joan Bennett.

Stade Geoffroy-Guichard: Stade Geoffroy-Guichard is a multi-purpose stadium in Saint-Étienne, France.  It is used primarily for football matches, and tournaments such as the 1984 European Football Championship, the Football World Cup 1998 and the Confederations Cup 2003.  It is also used for rugby union, and was a venue at the 2007 Rugby World Cup.  It is nicknamed "le Chaudron" (the Cauldron), or "l'enfer vert" (the Green Hell), an allusion to the colours worn by the local football team, AS Saint-Étienne, given during the team's heyday when it drew particularly large crowds (the record being set in 1985, with more than 47,000 spectators).  More recently, its current capacity was 35,616 before the current renovations, which began in 2011 and have temporarily reduced this figure to 26,747.  When the renovations are finished, the stadium will hold 42,000 seated spectators.

Last Caress/Green Hell: "Last Caress/Green Hell" is Metallica's 1987 cover version of the Misfits songs "Last Caress" and "Green Hell", released on Metallica's "" E.P. and 5th on Disc 2 on Metallica's 8th album, 1998's "Garage Inc." album.  It is 3:29 in length at 103 , in the key of .

Supporting paragraphs: Nürburgring Jackie Stewart
Answer: 11 June 1939