Green is to classify for treaty, elections and parliament matters.
Yellow is to classify for natural disaster.
Orange is to classify for man made disaster and emergency.
Blue is to classify for opening of a new building.
Before 1800
13th century – The port of Temasek (Sea Town) is founded by Sang Nila Utama, a prince of Srivijaya.
1800–1899
1819 – 29 January – Stamford Raffles arrives in Singapore with William Farquhar to establish a trading post for the British East India Company.
1819 – 6 February – The treaty is signed between Sultan Hussein of Johor, Temenggong Abdul Rahman and Stamford Raffles. Farquhar is installed as Resident of the settlement.
1821 – Singapore General Hospital is established.
1826 – Singapore becomes part of the British colony of Straits Settlements under the rule of the East India Company, together with Malacca and Penang.
1844 – The Tan Tock Seng Hospital begins operation.
1892 – The Tanjong Pagar Police Station opens, and many Sikh policemen are recruited.
1900–1939
1915 – 15–25 February – The Singapore Mutiny occurred as British Muslim Indian sepoys rose up against the British.
1928- Seletar Airport was completed as an Royal Air Force station(RAF Seletar) and was also Singapore's first international airport.
1932 - Tanjong Pagar Railway Station is opened.
1937 - 12 June - Kallang Airport is opened.
1940s
1941 – 10 December – The British battleship HMS Prince of Wales and battlecruiser HMS Repulse are sunk by Japanese bombers.
1942 – 8 February – The Japanese cross the Strait of Johor by inflatable boats and land in Singapore during the Battle of Singapore.
1942 – 11 February – The Japanese and Allied soldiers fight fiercely at Bukit Timah.
1942 – 13 February – The Malay regiment, led by Lt. Adnan bin Saidi, fight bravely against the Japanese at Pasir Panjang Ridge in the Battle of Pasir Panjang.
1942 – 15 February – The British surrenders and the Japanese Occupation of Singapore starts. Singapore is renamed Syonan (Light of the South).
1944 – March 27 – Lim Bo Seng is captured by the Japanese, and dies after 3 months of torture.
1945 – 14 August - Japan surrenders, and there is anomie and looting for nearly a month when the British do not return immediately.
1945 – 5 September – The British return to Singapore after the end of World War II and begin a military administration of the Straits Settlements.
1946 – 1 April – The Straits Settlements is dissolved and Singapore becomes a separate crown colony.
1948 – Rubber plantations and tin mines in Malaya are destroyed by communists, and the British declares the state of Emergency over Singapore and Malaya.
1948 – 20 March – Singapore's first limited election is held, with 6 seats in the Legislative Council. The Singapore Progressive Party wins 3 seats.
1948 – 18 June – Malayan Emergency begins, Singapore declared a State of Emergency a week later.
1950s
1950 – 11–13 December – 18 people are killed during the Maria Hertogh riots.
1951 – The number of elected seats is increased to 9 in the second election.
1954 – May – Chinese school students demonstrate against the British due to the National Service proposal. See Anti-National Service Riots
1955 – 12 May – Four people are killed during the Hock Lee bus riots.
1955 – 2 April – The Labour Front wins the most seats in election and David Saul Marshall becomes the first Chief Minister of Singapore.
1955- 20 August -Paya Lebar Airport opened.
1956 – June – David Saul Marshall appeals to the United Kingdom for full self-government, but resigns when he fails. Lim Yew Hock takes over as Chief Minister.
1956 – October – Riots by pro-communist Chinese school students occur when government closes down a student union.
1959 – March – Lim Yew Hock successfully gains full self-government for Singapore.
1959 – May – People's Action Party (PAP) wins the General Election and Lee Kuan Yew becomes the first Prime Minister.
1959 – Encik Yusof bin Ishak becomes the Head of State of Singapore.
1959 – 3 December – The national anthem Majulah Singapura, written by Zubir Said, is presented.
1960s
1961 – 25 May – The Bukit Ho Swee Fire kills four people and destroys 2,200 attap houses.
1962 – 1 September – A referendum is held in Singapore to vote on merger with Malaysia.
1963 – 9 July – The Malaysia Agreement is signed between leaders of Malaya, Singapore, Sabah and Sarawak.
1963 – 16 September – Malaysia is formed. Indonesia carries out its konfrontasi campaign.
1963 – 21 September – The PAP wins the 1963 State Elections, defeating the Barisan Sosialis and UMNO.
1964 – 21 July – There is an ethnic riot between various Malays and Chinese, on Prophet Muhammad's birthday, 23 people are killed.
1965 – 10 March – Indonesian saboteurs carry out the MacDonald House bombing, killing three people.
1965 – 7 August – Singapore and Malaysia sign the separation agreement.
1965 – 9 August – The Malaysian Parliament votes to expel Singapore from the Federation; Singapore becomes independent after separating from Malaysia.
1965 – 21 September – Singapore is admitted into the United Nations as the 117th member.
1965 – 22 December – Constitutional Amendment Act is passed and Yusof bin Ishak becomes the first President of Singapore.
1967 – 14 March – The National Service bill is passed in the parliament.
1967 – 12 June – The issue of the first Singapore Dollar.
1967 – 8 August- Singapore is the founding member of the Association of Southeast Asian Nations (ASEAN).
1968 – April – The PAP wins all seats in the 1968 General Election, which is boycotted by Barisan Sosialis.
1969 – 31 May – The 1969 Race Riots of Singapore broke out after growing tension of the 13 May Incident in Malaysia spilled over to Singapore.
1970s
1971 – 2 January – Dr Benjamin Henry Sheares becomes the second President of Singapore. 1972 – 2 September – The PAP wins the 1972 General Election.
1972 – The Singapore Airlines is formed.
1974 – 31 January – Laju incident: Japanese Red Army bombs petroleum tanks at Pulau Bukom and hijacks a ferry boat.
1976 – The PAP wins all 69 seats in the 1976 General Election.
1978 – 12 October – Spyros disaster
1980s
1980 – The PAP wins all 75 seats in the 1980 General Election.
1981 – 1 July – Singapore Changi Airport starts operation.
1981 – 24 October – C V Devan Nair becomes the third President of Singapore.
1981 – 31 October – Workers' Party of Singapore's Joshua Benjamin Jeyaretnam elected into Parliament, breaking a 16 years PAP monopoly of the House.
1982 – The Courtesy Campaign and the Civil Defence Programme are launched.
1983 – 29 January – Eniwetok, a Panamanian-registered oil rig, hits the Singapore Cable Car system, sending two cabins plunging into the sea and killing seven people.
1984 – The PAP wins the 1984 General Election while two members of the opposition parties are elected as members of parliament. Three PAP women MPs are also elected, ending a 16 years absence of women representation in Parliament.
1984 – Non-Constituency Member of Parliament was introduced.
1985 – 2 September – Wee Kim Wee becomes the fourth President of Singapore.
1986 – 15 March – The Hotel New World collapses, killing 33 people.
1987 – 21 May – 16 people were arrested during Operation Spectrum and detained under the Internal Security Act. Another six were arrested on 20 June.
1988 – 3 September – The PAP wins the 1988 General Election and Group Representation Constituencies (GRCs) are introduced.
1990s
1990 – 6 July – The East West Line of the Mass Rapid Transit (MRT) is completed.
1990 – 22 November – Singapore Changi Airport Terminal 2 begins operation.
1990 – 28 November – Goh Chok Tong becomes the second Prime Minister of Singapore.
1991 – 26 March – Four Pakistanis hijack Singapore Airlines Flight 117 and demand the release of Pakistan Peoples Party members from Pakistani jails.
1991 – 27 March – Members of the Singapore Special Operations Force storm into Singapore Airlines Flight 117, killing all hijackers and freeing all passengers and crew members.
1993 – 1 September – Ong Teng Cheong becomes the first directly-elected President.
1998 – September – "The Singapore Story", the first volume of Lee Kuan Yew's memoirs is published
1999 – Sellapan Ramanathan Nathan becomes the President of Singapore
1999 – Singapore slips into recession during the Asian financial crisis.
2000s
2000 – 31 October – Singapore Airlines Flight 006 crashes during take-off in Chiang Kai Shek International Airport, killing 83 people.
2001–2003 – Economic recession in Singapore.
2001 – 3 November – The PAP wins 82 of 84 seats in the 2001 General Election.
2001 – 27 December – Typhoon Vamei, a rare typhoon that occurs only once in 100 to 400 years, hits Singapore.
2003 – April – SARS virus outbreak in Singapore and other parts of Asia.
2003 – 6 May – Singapore and United States sign the United States-Singapore Free Trade Agreement (USS-FTA).
2004 – 20 April – A section of Nicoll Highway collapses, killing 4 people.
2004 – National Service was reduced from two and half years to two years.
2004 – 12 August – Lee Hsien Loong, Lee Kuan Yew's Son becomes the third Prime Minister. 2005 – 8 July – In the aftermath of the 7 July 2005 – London bombings, Transport Minister Yeo Cheow Tong announces plan to set up a new Police MRT Unit to enhance the security of Singapore's public transport. (CNA)
2005 – 17 August – S R Nathan returns for his second term as President, following a walkover in the Singapore presidential election, 2005.
2006 – 6 May – The PAP, led by Lee Hsien Loong, wins 82 of 84 seats in the General Election.
2008 – 9 January – Singapore Changi Airport opens its third passenger terminal.
2008 – 21 March – Jemiah Islamiah terrorist head Mas Selamat bin Kastari escapes from prison.
2008 – September- Singapore slips into recession due to the global financial crisis. World economies hit badly; banks around the world collapse.
2009- midnight of May 26-First case of H1N1 confirmed in Singapore. She was from New York on flight SQ25 on May 26 at 6.30am.
2009-28 May- Stage 3 (Bartley-Marymount) opened (circle line)
2010-17 April- Stage 1 and 2 (Dhoby Ghaut-Bartley) opened (circle line)
2010-August 14 to August 26-First Ever YOG (Youth Olympic Games) held in Singapore.
2011-7 May- The PAP, led by Lee Hsien Loong, wins 81 of 87 seats in the General Election.
