Context and question: Another Alaskan transportation method is the dogsled. In modern times (that is, any time after the mid-late 1920s), dog mushing is more of a sport than a true means of transportation. Various races are held around the state, but the best known is the Iditarod Trail Sled Dog Race, a 1,150-mile (1,850 km) trail from Anchorage to Nome (although the distance varies from year to year, the official distance is set at 1,049 miles or 1,688 km). The race commemorates the famous 1925 serum run to Nome in which mushers and dogs like Togo and Balto took much-needed medicine to the diphtheria-stricken community of Nome when all other means of transportation had failed. Mushers from all over the world come to Anchorage each March to compete for cash, prizes, and prestige. The "Serum Run" is another sled dog race that more accurately follows the route of the famous 1925 relay, leaving from the community of Nenana (southwest of Fairbanks) to Nome.
Which Alaskan way of transport isn't more for sport than for transportation?
Answer: unanswerable
Context and question: However, most of the major FBS teams annually schedule early season non-conference preseason home games against lesser opponents that are lower-tier FBS, Football Championship, or Division II schools, which often result in lopsided victories in favor of the FBS teams and act as exhibition games in all but name, though they additionally provide a large appearance fee and at least one guaranteed television appearance for the smaller school. These games also receive the same criticism as NFL exhibition games, but instead it is targeted to schools scheduling low-quality opponents and the simplicity for a team to run up the score against a weak opponent. However, these games are susceptible to backfiring, resulting in damage in poll position and public perception, especially if the higher ranked team loses, although the mere act of scheduling a weak opponent is harmful to a team's overall strength of schedule itself. Games an FBS team schedules against lower division opponents do not count toward the minimum seven wins required for bowl eligibility, and only one game against an FCS team can be counted. With the start of the College Football Playoff system for the 2014 season, major teams are now discouraged from scheduling weaker opponents for their non-conference schedule because of a much higher emphasis on strength of schedule than in the Bowl Championship Series era.
When did the college football playoff system and?
Answer: unanswerable
Context and question: The era of manufactured fibers began with the development of rayon in France in the 1890s. Rayon is derived from a natural cellulose and cannot be considered synthetic, but requires extensive processing in a manufacturing process, and led the less expensive replacement of more naturally derived materials. A succession of new synthetic fibers were introduced by the chemicals industry in the following decades. Acetate in fiber form was developed in 1924. Nylon, the first fiber synthesized entirely from petrochemicals, was introduced as a sewing thread by DuPont in 1936, followed by DuPont's acrylic in 1944. Some garments were created from fabrics based on these fibers, such as women's hosiery from nylon, but it was not until the introduction of polyester into the fiber marketplace in the early 1950s that the market for cotton came under threat. The rapid uptake of polyester garments in the 1960s caused economic hardship in cotton-exporting economies, especially in Central American countries, such as Nicaragua, where cotton production had boomed tenfold between 1950 and 1965 with the advent of cheap chemical pesticides. Cotton production recovered in the 1970s, but crashed to pre-1960 levels in the early 1990s.
What was manufactured completely from petrochemicals?
Answer:
Nylon