The consumer version of Mac OS X was launched in 2001 with Mac OS X 10.0. Reviews were variable, with extensive praise for its sophisticated, glossy Aqua interface, but criticizing it for sluggish performance. With Apple's popularity at a low, the makers of several classic Mac applications such as FrameMaker and PageMaker declined to develop new versions of their software for Mac OS X. Ars Technica columnist John Siracusa, who reviewed every major OS X release up to 10.10, described the early releases in retrospect as 'dog-slow, feature-poor' and Aqua as 'unbearably slow and a huge resource hog'.
Mac OS X was originally presented as the tenth major version of Apple's operating system for Macintosh computers; current versions of macOS retain the major version number "10". Previous Macintosh operating systems (versions of the classic Mac OS) were named using Arabic numerals, as with Mac OS 8 and Mac OS 9. The letter "X" in Mac OS X's name refers to the number 10, a Roman numeral, and Apple has stated that it should be pronounced "ten" in this context. However, it is also commonly pronounced like the letter "X".
On the next night's Raw Is War, during a steel cage title rematch, Triple H attacked The Rock, allying with McMahon and Austin and helping Austin retain the championship. Austin and Triple H then formed a tag team called The Power Trip, while The Rock was indefinitely suspended in storyline. Johnson used this time off to act in The Scorpion King.
In the 2001 NBA Finals against the 76ers, O'Neal fouled out in Game 3 backing over Dikembe Mutombo, the 2000–2001 Defensive Player of the Year. "I didn't think the best defensive player in the game would be flopping like that. It's a shame that the referees buy into that", O'Neal said. "I wish he'd stand up and play me like a man instead of flopping and crying every time I back him down.
The President's Daily Brief on June 29, 2001, stated that "[the United States] is not the target of a disinformation campaign by Osama Bin Laden". The document repeated evidence surrounding the threat, "including an interview that month with a Middle Eastern journalist in which Bin Laden aides warned of a coming attack, as well as competitive pressures that the terrorist leader was feeling, given the number of Islamists being recruited for the separatist Russian region of Chechnya." The CIA reiterated that the attacks were anticipated to be near-term and have "dramatic consequences".
In July 2001, J. Cofer Black, CIA's couterterrorism chief and George Tenet, CIA's director, met with Condoleezza Rice, the National Security Advisor, to inform her about communications intercepts and other top-secret intelligence showing the increasing likelihood that al-Qaeda would soon attack the United States. Rice listened but was unconvinced, having other priorities on which to focus. Secretary of Defense Donald Rumsfeld questioned the information suggesting it was a deception meant to gauge the U.S. response.
After Thoman's resignation, Allaire again resumed the position of CEO and served until the appointment of Anne M. Mulcahy, another long-term Xerox executive. Xerox's turnaround was largely led by Mulcahy, who was appointed president in May 2000, CEO in August 2001, and chairman in January 2002. She launched an aggressive turnaround plan that returned Xerox to full-year profitability by the end of 2002, along with decreasing debt, increasing cash, and continuing to invest in research and development.
On August 6, 2001, the President's Daily Briefing, entitled Bin Ladin Determined to Strike in US warned that bin Laden was planning to exploit his operatives' access to the U.S. to mount a terrorist strike: FBI information... indicates patterns of suspicious activity in this country, consistent with preparations for hijackings or other types of attack. Rice responded to the claims about the briefing in a statement before the 9/11 Commission stating the brief was "not prompted by any specific threat information" and "did not raise the possibility that terrorists might use airplanes as missiles."
Upon the success of Dónde Están los Ladrones? and MTV Unplugged, Shakira began working on an English crossover album. She learned English with the help of Gloria Estefan. She worked for over a year on new material for the album. "Whenever, Wherever", called "Suerte" in Spanish-speaking countries, was released as the first and lead single from her first English album and fifth studio album in August 2001.
The deadliest aviation-related disaster of any kind, considering fatalities on both the aircraft and the ground, was the destruction of the World Trade Center in New York City on September 11, 2001. On that morning, four commercial aircraft traveling on transcontinental flights from East Coast airports to California were hijacked after takeoff. The four hijacked aircraft were subsequently crashed in four separate suicide attacks against major American landmarks, by 19 Islamic terrorists affiliated with Al Qaeda. American Airlines Flight 11 and United Airlines Flight 175 were intentionally crashed into the North and South Towers respectively of the World Trade Center, destroying both buildings in less than two hours. The World Trade Center crashes killed 2,753, the vast majority of fatalities being occupants of the World Trade Center towers or emergency personnel responding to the disaster. Also, 184 were killed by American Airlines Flight 77, which crashed into the Pentagon (causing severe damage and partial destruction to the building's west side). 40 passengers were also killed when United Airlines Flight 93 crashed into a Somerset County, Pennsylvania field after passengers fought back and prevented the hijackers from reaching their designated target.
Early on the morning of September 11, 2001, 19 hijackers took control of four commercial airliners (two Boeing 757s and two Boeing 767s) en route to California (three headed to LAX in Los Angeles and one to SFO in San Francisco).
On September 14, 2001, the U.S. Congress passed the Authorization for Use of Military Force Against Terrorists. Still in effect, it grants the President the authority to use all "necessary and appropriate force" against those whom he determined "planned, authorized, committed or aided" the September 11 attacks, or who harbored said persons or groups.
There were reports of attacks on mosques and other religious buildings (including the firebombing of a Hindu temple), and assaults on people, including one murder: Balbir Singh Sodhi, a Sikh mistaken for a Muslim, was fatally shot on September 15, 2001, in Mesa, Arizona.
Shortly after the attacks, President Bush made a public appearance at Washington, D.C.'s largest Islamic Center and acknowledged the "incredibly valuable contribution" that millions of American Muslims made to their country and called for them "to be treated with respect.".
On September 20, 2001, President George W. Bush addressed the nation and a joint session of the United States Congress regarding the events of September 11 and the subsequent nine days of rescue and recovery efforts, and described his intended response to the attacks. New York City mayor Rudy Giuliani's highly visible role won him high praise in New York and nationally.
On September 27, 2001, FBI released photos of all 19 hijackers, along with information about possible nationalities and aliases. Fifteen of the men were from Saudi Arabia, two from the United Arab Emirates, one from Egypt, and one from Lebanon.
On October 10, 2001, bin Laden appeared as well on the initial list of the top 22 FBI Most Wanted Terrorists, which was released to the public by the President of the United States George W. Bush, in direct response to the September 11 attacks, but which was again based on the indictment for the 1998 embassy attack.
The next major version of Windows NT, Windows XP, was released on October 25, 2001. The introduction of Windows XP aimed to unify the consumer-oriented Windows 9x series with the architecture introduced by Windows NT, a change that Microsoft promised would provide better performance over its DOS-based predecessors. Windows XP would also introduce a redesigned user interface (including an updated Start menu and a "task-oriented" Windows Explorer), streamlined multimedia and networking features, Internet Explorer 6, integration with Microsoft's .NET Passport services, modes to help provide compatibility with software designed for previous versions of Windows, and Remote Assistance functionality.
American Airlines Flight 587, an Airbus A300, crashed on November 12, 2001, in the Belle Harbor neighborhood of Queens, New York, just after departing John F. Kennedy International Airport bound for Las Américas International Airport, Santo Domingo. The first officer's overuse of the rudder in response to wake turbulence from a Japan Airlines 747 was cited as a cause. All 260 people on board, as well as five people on the ground, died from the crash. It is the second-deadliest aviation accident on U.S. soil, after American Airlines Flight 191.
The original Xbox was released on November 15, 2001, in North America, February 22, 2002, in Japan, and March 14, 2002, in Australia and Europe. It was Microsoft's first foray into the gaming console market. As part of the sixth-generation of gaming, the Xbox competed with Sony's PlayStation 2, Sega's Dreamcast (which stopped American sales before the Xbox went on sale), and Nintendo's GameCube. The Xbox was the first console offered by an American company after the Atari Jaguar stopped sales in 1996. The name Xbox was derived from a contraction of DirectX Box, a reference to Microsoft's graphics API, DirectX.
As part of the WWF's battle against The Alliance, The Rock wrestled in a "winner takes all" five-on-five elimination tag team match at Survivor Series where the losing team's company would be dissolved in storyline. He was a member of Team WWF along with Chris Jericho, The Undertaker, Kane, and Big Show. The Alliance's team consisted of Stone Cold Steve Austin, Kurt Angle, Booker T, Rob Van Dam, and Shane McMahon. In the end, it came down to a one-on-one between The Rock and Stone Cold Steve Austin. The Rock's WCW Championship was renamed the unbranded "World Championship" following the Alliance's loss.