being the highest-grossing American comic book superhero worldwide. Spider-Man joined the Macy's Thanksgiving Day Parade from 1987 to 1998 as one of the balloon floats, designed by John Romita Sr., one of the character's signature artists. A new, different Spider-Man balloon float also appeared from 2009 to 2014. When Marvel wanted to issue a story dealing with the immediate aftermath of the September 11 attacks, the company chose the December 2001 issue of The Amazing Spider-Man. In 2006, Spider-Man garnered major media coverage with the revelation of the character's secret identity, an event detailed in a full-page story in the New York Post before the issue containing the story was even released. In 2008, Marvel announced plans to release a series of educational comics the following year in partnership with the United Nations, depicting Spider-Man alongside the UN Peacekeeping Forces to highlight UN peacekeeping missions. A BusinessWeek article listed Spider-Man as one of the top 10 most intelligent fictional characters in American comics. In 2015, the Supreme Court of the United States decided Kimble v. Marvel Entertainment, LLC, a case concerning royalties on a patent for an imitation web shooter. The opinion for the Court, by Justice Elena Kagan, included several Spider-Man references, concluding with the statement that "with great power, there must also come—great responsibility". Spider-Man has become a subject of scientific inquiry. In 1987, researchers at Loyola University conducted a study into the utility of Spider-Man comics for informing children and parents about issues relating to child abuse. Reception In 2005, Bravo's Ultimate Super Heroes, Vixens, and Villains TV series declared that Spider-Man was the number 1 superhero. Empire magazine ranked him the fifth-greatest comic book character of all time. Wizard magazine placed Spider-Man as the third-greatest comic book character on their website. In 2011, Spider-Man placed third on IGN's Top 100 Comic Book Heroes of All Time, behind DC Comics characters Superman and Batman. and sixth in their 2012 list of "The Top 50 Avengers". In 2014, IGN identified Spider-Man the greatest Marvel Comics character of all time. A 2015 poll at Comic Book Resources named Spider-Man the greatest Marvel character of all time. IGN described him as the common everyman that represents many normal people but also noted his uniqueness compared to many top-tiered superheroes with his many depicted flaws as a superhero. IGN noted that, despite being one of the most tragic superheroes of all