Question: When did the Division rule that wheelchair athletes could compete in the NYC Marathon?
About the article "Marathon", section "Wheelchair division".

Candidate passages:
The Boston Marathon has a proud tradition of extending the challenge of the marathon to people with disabilities.
In 1975, the Boston Marathon became the first major marathon to include a wheelchair division competition.
Bob Hall wrote race director Will Cloney to ask if he could compete in the race in his wheelchair.
Cloney wrote back that he could not give Hall a race number, but would recognize Hall as an official finisher if he completed the race in under 3 hours and 30 minutes.
Hall finished in 2 hours and 58 minutes, paving the way for the wheelchair division.
In addition to the push rim wheelchair division, the Boston Marathon also hosts a blind/visually impaired division and a mobility impaired program.
Similar to the running divisions, a set of realistic qualifying times has been developed for these divisions to motivate aspiring athletes and ensure competitive excellence.
In 1986, the introduction of prize money at the Boston Marathon gave the push rim wheelchair division the richest prize purse in the sport.
More than 1,000 people with disabilities and impairments have participated in the wheelchair division, while the other divisions have gained popularity each year.
In 2013, 40 blind runners participated. 
Many marathons feature a wheelchair division.
Typically, those in the wheelchair racing division start their races earlier than their running counterparts.
The first wheelchair marathon was in 1974 in Toledo, Ohio, won by Bob Hall in 2:54.
Hall competed in the 1975 Boston Marathon and finished in 2:58, inaugurating the introduction of wheelchair divisions into the Boston Marathon.
From 1977 the race was declared the US National Wheelchair championship.
The Boston Marathon awards $10,000 to the winning push-rim athlete.
Ernst van Dyk has won the Boston Marathon wheelchair division nine times and holds the world record at 1:18:27, set in Boston in 2004.
Jean Driscoll won eight times (seven consecutively) and holds the women's world record at 1:34:22.
The New York City Marathon banned wheelchair entrants in 1977, citing safety concerns, but then voluntarily allowed Bob Hall to compete after the state Division of Human Rights ordered the marathon to show cause.
The Division ruled in 1979 that the New York City Marathon and New York Road Runners club had to allow wheelchair athletes to compete, and confirmed this at appeal in 1980, but the State Supreme Court ruled in 1981 that a ban on wheelchair racers was not discriminatory as the marathon was historically a foot race.
However, by 1986 14 wheelchair athletes were competing, and an official wheelchair division was added to the marathon in 2000.
The Men's marathon 4 was a wheelchair marathon event in athletics at the 1988 Summer Paralympics.
It was contested by seventeen athletes from eleven countries. 
In terms of finishing athletes the 2008 Berlin marathon was the 5th largest marathon run of all times.
35,913 athletes including 130 power walkers (not including handbiker or wheelchair competitors) reached the finish in under 6 hours. 
Men's marathon races for wheelchair athletes at the 2004 Summer Paralympics followed a course from Marathon to the Panathinaiko Stadium, and started at 08:00 on 26 September.
Events were held in three wheelchair disability classes, together with two classes of visually impaired athletes.