• January 1 - Bulgaria and Romania join the European Union.
• January 1 - Slovenia adopts the euro as its official currency, replacing the tolar.
• January 1 - South Korea's Ban Ki-moon becomes the new United Nations Secretary-General, replacing Kofi Annan.
• January 1 - Smoking is banned in all public places in Hong Kong.
• January 1 - Adam Air Flight 574, a routine domestic flight in Indonesia, disappears; debris is found 10 days later, but the aircraft remains missing.
• January 1 - Angola joins OPEC.
• January 1 - War in Somalia: Fighters of the Islamic Courts Union abandon their last stronghold in Kismayo and flee for the Kenyan border.
• January 2 - The new constitution of Gibraltar comes into force.
• January 3 - China conducts an anti-terror raid in Xinjiang.

• January 4 - Nancy Pelosi becomes the first female speaker of the United States House of Representatives.
• January 5 - War in Somalia: The first shots are fired in the battle for control of the border town of Ras Kamboni.
• January 8 - Daniel Ortega becomes President of Nicaragua for the second time.
• January 8 - Russian oil supplies to Poland, Germany, and Ukraine are cut as the Russia-Belarus energy dispute escalates; restored three days later.
• January 9 - War in Somalia: U.S. planes conduct air strikes in Somalia against suspected terrorists.
• January 9 - An AerianTur-M Antonov An-26 crashes in Balad, Iraq. The Islamic Army in Iraq claims to have shot it down.
• January 9 - Apple Inc. announces and introduces the highly speculated iPhone at the 2007 Macworld Conference & Expo.
• January 10 - U.S. President George W. Bush announces a plan to station 21,500 additional troops in Iraq.
• January 11 - In Bangladesh, a state of emergency is declared by caretaker President Iajuddin Ahmed, following weeks of violent protests preceding upcoming parliamentary elections.
• January 11 - Vietnam joins the World Trade Organization as its 150th member.
• January 11 - China successfully tests a ground-based ballistic missile capable of destroying satellites in orbit, drawing criticisms from other countries.
• January 12 - An Argentine judge issues a warrant for the arrest of former President Isabel Martínez de Perón in connection with the disappearance of a human rights worker in 1976.
• January 12 - The US Embassy in Athens is attacked with a rocket propelled grenade, which caused minimal damage and no injuries.
• January 12 - Comet McNaught, the brightest comet in over 40 years, makes perihelion.
• January 13 - The Greek ship Server breaks in half off the Norwegian coast, releasing over 200 tons of crude oil.
• January 14 - The International Red Cross and Red Crescent Movement adopts the Red Crystal as a non-religious emblem for use in its overseas operations.
• January 14 - Nazanin Fatehi, a 19 year old Iranian girl previously sentenced to death for killing a man she claimed tried to rape her niece, is exonerated in a retrial.
• January 17 - Hurricane force winds from storm Kyrill claim at least 40 lives in western Europe.
• January 17 - Protests occur in India and the United Kingdom against the British series of Celebrity Big Brother after Jade Goody, Danielle Lloyd and Jo O'Meara were alleged to have been racially abusive towards Bollywood star Shilpa Shetty.
• January 17 - Doomsday Clock is advanced from 7 to 5 minutes to midnight.
• January 18 - Comet McNaught, the brightest comet to appear in over 40 years, becomes visible over the Southern Hemisphere.

• January 18 - The strongest storm in the UK in 17 years kills 14 people, and Germany sees the worst storm since 1999 with 13 deaths. Hurricane Kyrill causes at least 44 deaths across 20 countries in Western Europe.
• January 19 - Israel releases $100 million in frozen assets to President Mahmoud Abbas of the Palestinian National Authority in order to bolster the president's position.
• January 22 - A bombing in a market in Baghdad, Iraq kills 88 people.
• January 24 - The Israeli Ministry of Justice announces that the President of Israel, Moshe Katsav, will be charged with rape and abuse of power.
• January 25 - The President of Israel, Moshe Katsav, takes a temporary leave of absence due to a sex scandal.
• January 28 - A battle between insurgents and U.S.-backed Iraqi troops kills 300 suspected resistance members in Najaf, Iraq.
• January 28 - February 4 - The 2007 Asian Winter Games are held in Changchun, China.
• January 29 - A suicide bomber kills three people in a bakery in Eilat, Israel.
• January 30 - Microsoft releases Windows Vista and Office 2007.
• January 31 - The Venezuelan National Assembly gives President Hugo Chávez the power to rule by decree for 18 months.
• January 31 - Delta Air Lines creditors reject US Airways' hostile takeover bid.
• January 31 - The Mooninite scare occurs in Boston, when devices used in a guerrilla marketing campaign for the animated television series Aqua Teen Hunger Force are mistaken for improvised explosive devices.

February

• April 2 - Smoking banned in enclosed places in Wales.
• April 2 - The Solomon Islands is shaken by a magnitude 8.1 earthquake, and hit by a subsequent tsunami.
• April 3 - Ukrainian President Viktor Yushchenko dissolves the Ukrainian Parliament following defections that increased the majority of his opponents. It has been nicknamed the "Second Orange Revolution".
• April 4 - NATO and Afghan forces retake a key town from the Taliban in Sangin in southern Helmand Province.
• April 4 - Iran announced it will release the British sailors and marines that they captured on March 23. The captives arrive back in the UK the next day.
• April 5 - The Greek cruise ship M/S Sea Diamond strikes a reef off the harbor of Santorini; the ship sinks the next day.
• April 6 - Severe clashes between two rival factions erupted in Parachinar, a tribal area of Pakistan bordering the famous Tora Bora Heights.
• April 8 - Zach Johnson wins the 2007 Masters Tournament.
• April 11 - Al Qaeda claims responsibility for two bomb blasts in the Algerian capital of Algiers. At least 33 people have been killed and 222 others injured.
• April 12 - Don Imus is fired by CBS for making controversial comments about the Rutgers women's basketball team.
• April 14 - Retired chess champion Garry Kasparov is detained in Moscow for participating in a banned march.

• April 16 - Thirty-two people are killed in the Virginia Tech massacre on the premises of Virginia Polytechnic Institute and State University in Blacksburg, Virginia.
• April 17 - The Pound Sterling hits a 15-year high against the US dollar, breaking through the US$2 level for the first time since 1992.
• April 17 – The 2014 Asian Games is awarded to be held in Incheon, South Korea, winning over India's New Delhi.
• April 18 - Thirty-two Chinese steel workers are burnt to death in the Qinghe Special Steel Corporation disaster.
• April 19 - US and allied air forces conduct massive exercises over South Korea with over 500 planes.
• April 21 - Presidential elections are held in Nigeria.
• April 22 - The first round of the French presidential election of 2007 takes place.
• April 23 - Bogotá, Colombia, begins its term as World Book Capital.
• April 24 - Abortion is legalized in Mexico City.
• April 24 - Gliese 581 c, a potentially habitable Earth-like extrasolar planet, is discovered in the constellation Libra.
• April 25 - The Dow Jones Industrial Average gains 135.95 points to close at 13089.89; its first close above 13000 in its history.
• April 25 - The Burj Dubai reaches the height of the Sears Tower on its way to becoming the tallest building in the world.
• April 25 - Representative Dennis Kucinich (D-Ohio), introduces articles to impeach Vice President Dick Cheney.
• April 26 - Russians riot in Tallinn, Estonia, about moving the Bronze Soldier. Two nights of rioting leave one dead.
• April 27 - Turkish Presidential Election first round, which was later declared invalid by a Turkish court.

May

• July 1 - Hong Kong celebrates 10 years of Chinese rule.
• July 1 - Portugal takes over the Presidency of the Council of the European Union from Germany.
• July 1 - Smoking in public and work places is banned in England.
• July 1 - Smoking is banned in pubs and clubs in New South Wales and Victoria, Australia.
• July 1 - A law goes into effect lowering the voting age in Austria from 18 to 16 in federal elections.
• July 1 - Russia is composed of 85 federal subjects instead of 86 as Koryak Autonomous Okrug and Kamchatka Oblast were merged into the Kamchatka Krai following a 2005 referendum.
• July 1 - The Concert For Diana is held at Wembley Stadium to commemorate Diana, Princess