* HAMBURG, September 13, 2001: An airport employee is arrested in connection to the September 11, 2001, attacks in America.

* PARIS, September 21, 2001: Seven suspected members of Islamic groups with ties to Osama bin Laden are arrested on charges of plotting an attack on the American embassy.

* BRUSSELS, Belgium, September 22, 2001: Authorities arrest two suspected Islamic terrorists and seize potentially explosive chemicals in their Brussels apartment.

* LONDON, October 3, 2001: A French-Algerian man admits to recruiting Al Qaeda members in mosques in London and Leicester; he also admits involvement in bin Laden’s plan to bomb the American embassy in Paris.

* ITALY and GERMANY, October 2001: Authorities in the two countries arrest four men suspected of having ties to bin Laden and attempting to recruit members to Al Qaeda.

* PARIS, December 22, 2001: Richard Reid, a British national and convert to Islam, is overpowered by fellow passengers on an American Airlines flight en route to Miami as he attempts to light the fuse of a bomb in one of his shoes. At his trial the following year, he calls himself a soldier of Islam and pledges allegiance to bin Laden.

* LEICESTER, Britain, January 2002: Two Algerians are charged with involvement in Al Qaeda. Eleven others are arrested in a police raid.

* SARAJEVO and ZENICA, Bosnia, April 2002: Bosnian police forces raid charities suspected of channeling money to extremist Islamic organizations, including Al Qaeda.

* GERMANY, April 2002: Nine men alleged to be members of the Palestinian group Al Tawhid are arrested and accused of planning bombings on civilian targets around the country.

* PARIS, November 26, 2002: French authorities arrest eight men in connection with the shoe bombing attempt by Reid.

* MADRID, January 24, 2003: The prime minister of Spain, Jose Aznar, says the country has foiled an attempted attack following the arrest of 16 suspected Al Qaeda members in Catalonia.

* NAPLES, Italy, January 31, 2003: Italian police arrest 28 Pakistanis believed to have formed an Al Qaeda cell in the southern Italian city. Police found maps with NATO and American targets in Europe in the raid, as well as explosives sufficient to blow up a three-story building.

* LEICESTER, Britain, April 1, 2003: Two Algerians are jailed for plotting to raise money for Al Qaeda terrorist activities.

* BRUSSELS, Belgium, May 2003: A Tunisian man, one of 23 alleged Islamic militants on trial, tells a Belgian court he plotted to bomb the Kleine Brogel military base on an Al Qaeda mission. Other defendants are accused of crimes ranging from the murder of the Afghan opposition leader Ahmad Shah Massoud to planning attacks on American targets in Europe.

* BRITAIN, June, 2003: The UK freezes the assets of the Al-Aqsa Foundation charity because it suspects the charity is linked to Muslim terrorists.

* PARIS, June 2003: French judges place 17 Iranian exiles, part of the Iranian People’s Mujahideen, under formal investigation for alleged links to terrorism, including plans to attack Iranian embassies across Europe.

* ROME, November 18, 2003: The Italian foreign ministry deports seven North Africans accused of links to Islamic militant groups; one of the accused claims he fought alongside bin Laden.

* ISTANBUL, Turkey, December 20, 2003: The British Consulate and the London-based HSBC bank offices in Istanbul are attacked, leaving 27 people dead and more than 450 wounded. Two groups connected to Al Qaeda claim responsibility.

* BRITAIN, January, 2004: Robert Kilroy-Silk’s BBC show is canceled after an article he wrote entitled, ‘We Owe Arabs Nothing’ runs in the Sunday Express. He develops a reputation as being anti-Islam.

* LONDON, March, 2004: Police announce that they have stopped a major terrorist attack on London by seizing half a ton of ammonium nitrate fertilizer, which can be used to make explosives. Eight men are arrested, men “linked to possible Islamist terror,” police tell CNN.

* MADRID, March 11, 2004: More than 1,800 people are injured and 191 killed when 10 bombs strapped to suicide bombers ripped through Madrid’s subway system. An Islamic extremist group from Morocco is the main suspect, though several groups associated with Al Qaeda claimed responsibility.

* ITALY, April 2004: Italian police in more than 30 provinces interview and search the homes of 161 immigrants suspected of ties to Islamic extremist groups.

* BRITAIN, June 2004: Kilroy-Silk is elected to the European Parliament, running for the United Kingdom Independent Party.

* THE HAGUE, Netherlands, June 21, 2004: An Algerian and Frenchman are sentenced to prison for planning a terrorist attack on the American embassy in Paris.

* BERLIN, September 20, 2004: German officials ban an Islamic conference they say was planned to lend support to violent attacks on Israelis and Americans.

* AMSTERDAM, Netherlands, November 2, 2004: A Dutch filmmaker, Theo van Gogh, is stabbed and shot to death by an Islamic extremist after receiving threats regarding his film “Submission,” which accused Islam of promoting violence against women.

* PARIS, December 16, 2004: Ten suspected Islamic militants are jailed in the French capital for their part in a failed attempt to blow up a Christmas market in the northern city of Strasbourg in 2000.

* BRITAIN, January 2005: Kilroy-Silk breaks away from the United Kingdom Independent Party to form Veritas, a new party with a similar political outlook. In a news conference, he says he wants to end “multiculturalism” and halt mass-immigration, and says that cultures that “chop off limbs and behead people” are inferior.

* GERMANY, January 2005: German authorities sweep the country, detaining 20 suspected Islamic militants.

* BRITAIN, April 14, 2005: Al Qaeda suspect Kamal Bourgass is sentenced to 17 years for plotting to spread ricin and other poisons on UK streets. He was already serving a life term after murdering a policeman in 2003.

* BRITAIN, March 11, 2005: The British Parliament passes Tony Blair’s anti-terrorism bill into law. It allows terrorism suspects to be put under limited house arrest.