6 January: The IAEA passes a resolution demanding that North Korea readmit UN inspectors and abandon its secret nuclear weapons programme "within weeks", or face possible action by the UN Security Council.
7 January: The US says it is "willing to talk to North Korea about how it meets its obligations to the international community". But it "will not provide quid pro quos to North Korea to live up to its existing obligations".
10 January: North Korea announces it will withdraw from the Nuclear Non-Proliferation Treaty.
28 January: In his annual State of the Union address, President Bush says North Korea is "an oppressive regime [whose] people live in fear and starvation".
29 January: North Korea says Mr Bush's speech is an "undisguised declaration of aggression to topple the DPRK system" and dubs him a "shameless charlatan".
31 January: Unnamed American officials are quoted as saying that spy satellites have tracked movement at the Yongbyon plant throughout January, prompting fears that North Korea is trying to reprocess plutonium for nuclear bombs.
5 February: North Korea says it has reactivated its nuclear facilities and their operations are now going ahead "on a normal footing".
12 February: The IAEA finds North Korea in breach of nuclear safeguards and refers the matter to the UN security council.
24 February: North Korea fires a missile into the sea between South Korea and Japan.
25 February: Roh Moo-hyun sworn in as South Korean president.
2 March: Four North Korean fighter jets intercept a US reconnaissance plane in international air space and shadow it for 22 minutes.
10 March: North Korea fires a second missile into the sea between South Korea and Japan in as many weeks.
1 April: The US announces that "stealth" fighters sent to South Korea for a training exercise are to stay on once the exercises end.
9 April: The United Nations Security Council expresses concern about North Korea's nuclear programme, but fails to condemn Pyongyang for pulling out of the Nuclear Non-proliferation Treaty.
12 April: In a surprise move, North Korea signals it may be ready to end its insistence on direct talks with the US, announcing that "if the US is ready to make a bold switchover in its Korea policy for a settlement of the nuclear issue, [North Korea] will not stick to any particular dialogue format".
18 April: North Korea announces that it has started reprocessing its spent fuel rods. The statement is later amended to read that Pyongyang has been "successfully going forward to reprocess" the rods.
23 April: Talks begin in Beijing between the US and North Korea, hosted by China. The talks are led by the US Assistant Secretary of State for East Asian affairs, James Kelly, and the deputy director general of North Korea's American Affairs Bureau, Li Gun.
24 April: American officials say Pyongyang has told them that it now has nuclear weapons, after the first direct talks for months between the US and North Korea in Beijing end a day early.
2 May: Australian Foreign Minister Alexander Downer expresses concern after an official from North Korea's ruling Worker's Party is found on board a state-owned ship accused of bringing A$80m (US$50m) worth of heroin into Australia.
12 May: North Korea says it is scrapping a 1992 agreement with the South to keep the peninsula free from nuclear weapons - Pyongyang's last remaining international agreement on non-proliferation.
2 June: A visiting delegation of US congressmen led by Curt Weldon says North Korean officials admitted the country had nuclear weapons had "just about completed" reprocessing 8,000 spent fuel rods which would allow it to build more.
9 June: North Korea says publicly that it will build a nuclear deterrent, "unless the US gives up its hostile policy".
13 June: South Korea's Yonhap news agency says North Korean officials told the US on 30 June that it had completed reprocessing the fuel rods.
9 July: South Korea's spy agency says North Korea has started reprocessing a "small number" of the 8,000 spent nuclear fuel rods at Yongbyon.
1 August: North Korea agrees to six-way talks on its nuclear programme, South Korea confirms. The US, Japan, China and Russia will also be involved.
27-29 August: Six-nation talks in Beijing on North Korea's nuclear programme. The meeting fails to bridge the gap between Washington and Pyongyang. Delegates agree to meet again.
2 October: North Korea announces publicly it has reprocessed the spent fuel rods.
16 October: North Korea says it will "physically display" its nuclear deterrent.
30 October: North Korea agrees to resume talks on the nuclear crisis, after saying it is prepared to consider the US offer of a security guarantee in return for ending its nuclear programme.
21 November: Kedo, the international consortium formed to build 'tamper-proof' nuclear power plants in North Korea, decides to suspend the project.
9 December: North Korea offers to "freeze" its nuclear programme in return for a list of concessions from the US. It says that unless Washington agrees, it will not take part in further talks.
The US rejects North Korea's offer. President George W Bush says Pyongyang must dismantle the programme altogether.
200410 January: An unofficial US team visits what the North calls its "nuclear deterrent" facility at Yongbyon.
22 January: US nuclear scientist Siegfried Hecker tells Congress that the delegates visiting Yongbyon were shown what appeared to be weapons-grade plutonium, but he did not see any evidence of a nuclear bomb.
23 May: The UN atomic agency is reported to be investigating allegations that North Korea secretly sent uranium to Libya when Tripoli was trying to develop nuclear weapons.
23 June: Third round of six nation talks held in Beijing, with the US making a new offer to allow North Korea fuel aid if it freezes then dismantles its nuclear programmes.
2 July: US Secretary of State Colin Powell meets the North Korean Foreign Minister, Paek Nam-sun, in the highest-level talks between the two countries since the crisis erupted.
23 August: North Korea describes US President George W Bush as an "imbecile" and a "tyrant that puts Hitler in the shade", in response to comments President Bush made describing the North's Kim Jong-il as a "tyrant".
28 September: North Korea says it has turned plutonium from 8,000 spent fuel rods into nuclear weapons. Speaking at the UN General Assembly, Vice Foreign Minister Choe Su-hon said the weapons were needed for "self-defence" against "US nuclear threat".
14 January: North Korea says it is willing to restart stalled talks on its nuclear programme, according to the official KCNA news agency.
19 January: Condoleezza Rice, President George W Bush's nominee as secretary of state, identifies North Korea as one of six "outposts of tyranny" where the US must help bring freedom.
10 February: North Korea says it is suspending its participation in the talks over its nuclear programme for an "indefinite period", blaming the Bush administration's intention to "antagonise, isolate and stifle it at any cost". The statement also repeats North Korea's assertion to have built nuclear weapons for self-defence.
18 April: South Korea says North Korea has shut down its Yongbyon reactor, a move which could allow it to extract more fuel for nuclear weapons.
1 May: North Korea fires a short-range missile into the Sea of Japan, on the eve of a meeting of members of the international Non-Proliferation Treaty.
11 May: North Korea says it has completed extraction of spent fuel rods from Yongbyon, as part of plans to "increase its nuclear arsenal".
16 May: North and South Korea hold their first talks in 10 months, with the North seeking fertiliser for its troubled agriculture sector.
25 May: The US suspends efforts to recover the remains of missing US servicemen in North Korea, saying restrictions placed on its work were too great.
22 June: North Korea requests more food aid from the South during ministerial talks in Seoul, the first for a year.
9 July: North Korea says it will rejoin nuclear talks, as US Secretary of State Condoleezza Rice begins a tour of the region.
12 July: South Korea offers the North huge amounts of electricity as an incentive to end its nuclear weapons programme.
25 July: Fourth round of six-nation talks begins in Beijing.
7 August: The talks reach deadlock and a recess is called.
13 September: Talks resume, but a new North Korean request to be built a light water reactor prompts warnings of a "standoff" between the parties.
19 September: In what is initially hailed as an historic joint statement, North Korea agrees to give up all its nuclear activities and rejoin the nuclear Non-Proliferation Treaty, while the US says it had no intention of attacking.
20 September: North Korea says it will not scrap its nuclear programme until it is given a civilian nuclear reactor, undermining the joint statement and throwing further talks into doubt.
7 December: A senior US diplomat brands North Korea a "criminal regime" involved in arms sales, drug trafficking and currency forgery.
20 December: North Korea says it intends to resume building nuclear reactors, because the US had pulled out of a key deal to build it two new reactors.
12 April: A two-day meeting aimed at persuading North Korea to return to talks on its nuclear programme fails to resolve the deadlock.
3 July: Washington dismisses a threat by North Korea that it will launch a nuclear strike against the US in the event of an American attack, as a White House spokesman described the threat as "deeply hypothetical".
4 July: North Korea test-fires at least six missiles, including a long-range Taepodong-2, despite repeated warnings from the international community.
5 July: North Korea test-fires a seventh missile, despite international condemnation of its earlier launches.
7 July: South Korea suspends food aid in protest at the missile tests.
15 July: The UN Security Council unanimously votes to impose sanctions on North Korea over the missile tests. The resolution demands UN members bar exports and imports of missile-related materials to North Korea and that it halt its ballistic missile programme.
11 September: Senior US diplomat Christopher Hill warns North Korea against a nuclear test, saying that it would be a provocative act.
27 September: North Korea blames US financial sanctions for the deadlock in multilateral talks on its nuclear programme. In a speech to the UN General Assembly, envoy Choe Su-Hon said that North Korea was willing to hold talks, but the US stance had created an impasse.
3 October: North Korea is to conduct a nuclear test to "bolster" its self-defence in the face of US military hostility, the foreign ministry says. In a statement, it says North Korea would carry out the test "in the future... where safety is firmly guaranteed" - but did not say when.
9 October: North Korea says it has carried out its first ever test of a nuclear weapon. It calls the test a "historic event" and says it was carried out safely and successfully.
This article was written Oct 3, 2006 so I assume it was updated today with that last paragraph.