Answer the question at the end by quoting:

Comet is the name of two fictional comic book characters owned by DC Comics whose adventures have been published by that same company. The first character was a sapient horse with magical powers who was once a centaur in ancient Greece. The second character is a shapeshifter with three forms (male, female, and winged centaur). Both characters are connected to the Superman family of titles.
Comet the Super-Horse is a fictional character that appears in comic books published by DC Comics. Comet was introduced in the Superboy story in Adventure Comics #293 in February 1962, then appeared regularly with Supergirl beginning in Action Comics #292 in September 1962.  Comet was one of a series of super-powered animals, including Streaky the Supercat and Beppo the Supermonkey, that were popular in DC's comics of the 1960s. Comet was Supergirl's pet horse and, while in his human form as Bill Starr, her brief boyfriend. Comet also had a brief romance with Lois Lane in her comic book.  As he described to her telepathically, he was originally a centaur in ancient Greece named Biron. The witch Circe gave him a potion to turn him fully human after he prevented an evil sorcerer poisoning her water, but by mistake made him fully horse instead due to the Sorcerer. Unable to reverse the spell, she instead gave him superpowers, including immortality. The Sorcerer asked his teacher to help him against Biron and they were able to imprison him on an asteroid in the constellation of Sagittarius, which he had been born under. However, when Supergirl's rocket passed, it broke the force field, enabling him to escape. Later, after meeting Supergirl, he went on a mission with her to the planet Zerox, where a magic spell was cast that turned him into a human, but only while a comet passes through the solar system he is in. As a human, he adopted the identity of "Bronco" Bill Starr, a rodeo trick-rider, whom Supergirl fell in love with.  Comet made sporadic appearances in comic stories through the 1960s, and even became a member of the Legion of Super-Pets, a group consisting of the aforementioned super-powered animals.  A traditional equine Comet is partially seen in Legion of Three Worlds #1. He is part of a display in the museum Superboy-Prime visits. The museum does have displays of the supermen of the multiverse and the Kristen Wells Superwoman so it is unclear whether this means Comet has returned to regular continuity.

when was he created?

Comet was introduced in the Superboy story in Adventure Comics #293 in February 1962,



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Although Price claimed his birth was in Shropshire he was actually born in London in Red Lion Square on the site of the South Place Ethical Society's Conway Hall. He was educated in New Cross, first at Waller Road Infants School and then Haberdashers' Aske's Hatcham Boys School. At 15, Price founded the Carlton Dramatic Society and wrote plays, including a drama, about his early experience with a poltergeist which he said took place at a haunted manor house in Shropshire. According to Richard Morris, in his recent biography Harry Price:
Price claimed to have attended a private seance on 15 December 1937 in which a small six-year-old girl called Rosalie appeared. Price wrote he controlled the room by placing starch powder over the floor, locking the door and taping the windows before the seance. However, the identity of the sitters, or the locality where the seance was held was not revealed due to the alleged request of the mother of the child. During the seance Price claimed a small girl emerged, she spoke and he took her pulse. Price was suspicious that the supposed spirit of the child was no different than a human being but after the seance had finished the starch powder was undisturbed and none of the seals had been removed on the window. Price was convinced no one had entered the room via door or window during the seance. Price's Fifty Years of Psychical Research (1939) describes his experiences at the sitting and includes a diagram of the seance room.  Eric Dingwall and Trevor Hall wrote the Rosalie seance was fictitious and Price had lied about the whole affair but had based some of the details on the description of the house from a sitting he attended at a much earlier time in Brockley, South London where he used to live. K. M. Goldney who had criticized Price over his investigation into Borley Rectory wrote after the morning of the Rosalie sitting she found Price "shaken to the core by his experience." Goldney believed Price had told the truth about the seance and informed the Two Worlds spiritualist weekly newspaper that she believed the Rosalie sitting to be genuine.  In 1985, Peter Underwood published a photograph of part of an anonymous letter that was sent to the SPR member David Cohen in the 1960s which claimed to be from a seance sitter who attended the seance. The letter confessed to having impersonated the Rosalie child in the sitting by the request of the father who had owed the mother of the child money. In 2017, Paul Adams published details of the location of the Rosalie seance and identities of the family involved.

What happened after that?

Price was suspicious that the supposed spirit of the child was no different than a human being



Answer the question at the end by quoting:

Arijit Singh is an Indian musician, singer, composer, music producer, recordist and music programmer. He sings predominantly in Hindi and Bengali, but has also lent his voice to various other Indian languages. Singh is regarded as one of the most versatile and successful singers in the History of Indian Music and Hindi Cinema. At the start of his singing career, he received nominations for the Upcoming Male Vocalist of the Year award at the 2013 Mirchi Music Awards for renditions of "Phir Le Aya Dil" and "Duaa", winning the award for the latter.
Singh has played a great role in the Bollywood singing career of one of his contemporaries today Ash King. Regarding his help King told the Times of India, "When I met Arijit in London through a mutual friend, he wasn't a star singer yet. I knew he'd be big someday. When I came back (to Kolkata) in 2010, Arijit invited me to Mumbai and recommended me to Pritam for the song 'I Love You' and 'Te Amo'. He has been a great motivating force."  Singh said in an interview that he would love to serve people through his NGO named "Let There Be Light" which works for the Below Poverty Line (BPL) community. His NGO aims to include activities like bloodbank camp (with proof and records and photographs of all the blood being delivered properly), distribution of clothes, books, stationery, etc. to Below Poverty Line children on a huge scale and seasonal human ground activities.  In an interview, he spoke about his desire to work for people. "I try and help people in whichever way I can. I owned an NGO long time ago which is now turned into something which helps the people in whichever way they can. For example, we collected a lot of things for victims of the Nepal earthquake. The biggest problem is that we are not ready for anything bad that happens, be it during disasters or helping people post one. For example, the first earthquake in Nepal happened on 25 April and it took me a while to collect something as basic as matchboxes, candles and so on. People basically are not ready to help others. I firmly feel that we over here need a lot of awareness when it comes to population and at times I even feel bad for the Government."

What types of humanitarian works did  they partake in?
serve people through his NGO named "Let There Be Light" which works for the Below Poverty Line (BPL) community.