"Decimation" is a storyline published by Marvel Comics in 2005, spinning out of the events of the House of M limited series. The event started with a one-shot issue and took place in a number of various series all carrying the "Decimation" logo on the cover. The 2005 miniseries Generation M, Sentinel Squad O*N*E, X-Men: Deadly Genesis and X-Men: The 198 were all launched specifically for the "Decimation" storyline. The various stories were collected in five trade paper backs. The storyline focuses on the ramifications of the Scarlet Witch stripping nearly all of the mutant population of their powers, thereby reducing a society of millions to one of scant hundreds. This event, which occurred on November 2 according to X-Men (vol. 2) #191, is known as "M-Day" in the Marvel Universe. Reception among fans and critics was mixed, with a common complaint being the inconsistent manner in which mutants retained their powers while at times depicting "depowered" mutants as still having their physical mutations. Overview "Decimation" began with the self-titled one-shot Decimation: House of M: The Day After, and heralded the relaunch of the Excalibur team in New Excalibur, focusing on Pete Wisdom looking for Captain Britain to head up a new British super team, as well as the relaunch of X-Factor from the MadroX miniseries. It also includes several mini-series—Son of M starring a depowered Quicksilver, Generation M focusing on other depowered characters, Sentinel Squad O*N*E showing the latest iteration of the mutant-hunting Sentinels to be robots piloted by humans, X-Men: Deadly Genesis, and X-Men: The 198—and continues throughout the Marvel Universe, particularly in the X-Men-related titles. One consequence is an upswing of anti-mutant sentiment, especially among certain religious groups, who consider M-Day to be God's judgment against mutant-kind. It has been confirmed through various sources that there are considerably more than 198 mutants remaining—the number has been referred to as "symbolic" rather than actual, and in The 198 Files is said to be the earliest confirmed number. Numbers for pre-Decimation mutants vary from "over a million" (House of M #8) to 14 million (New X-Men #115, where it is said that the 16 million mutants who died on Genosha was around "over half" of the estimated global mutant population of 30 million mutants), giving a population, if the commonly used 90% depowered figure is true, of between one hundred thousand and one and a half million. Based on