This is a timeline of Singaporean history, comprising important legal and territorial changes and political events in Singapore and its predecessor states. To read about the background to these events, see History of Singapore. See also the list of years in Singapore.

11th to 12th century Year Date Event 1025 The region was invaded and occupied by Rajendra Chola of the Chola empire in India, although there has been no record of them visiting the island itself.Singapore in Global History by Derek Thiam Soon Heng, Syed Muhd Khairudin Aljunied p.40

13th century Year Date Event 1299 According to the Malay Annals, the Kingdom of Singapura was founded by Sang Nila Utama, a prince of Srivijaya. The kingdom existed till 1398.

14th century Year Date Event 1320 The Mongol court sends a mission to obtain elephants from Long Ya Men (or Dragon's Tooth Strait), believed to be Keppel Harbour. 1330 The Chinese traveller Wang Dayuan visits Temasek and records an attack by Siam, recording it down alongside Long Ya Men and Ban Zu. 1398 Parameswara, the last Srivijayan prince, flees from Temasek.

15th century Year Date Event 1414 Temasek becomes part of the Sultanate of Malacca established by Parameswara.

16th century Year Date Event 1511 15 August Malacca fell and was sacked by Afonso de Albuquerque of Portuguese Empire. See Portuguese Malacca.

17th century Year Date Event 1613 Portuguese burn down the trading outpost at the mouth of Singapore River. 1641 14 January Fall of Portuguese Malacca to Dutch.

19th century

Year Date Event 1819 29 January Sir Stamford Raffles arrives in Singapore with William Farquhar to establish a trading post for the British East India Company. 6 February The treaty is signed between Sultan Hussein of Johor, Temenggong Abdul Rahman and Sir Stamford Raffles.William Farquhar is installed as the first Resident of the settlement. 1821 Singapore General Hospital was established. 1822 Raffles drafts the Raffles Plan of Singapore to reorganise the island. 1823 27 May Dr John Crawfurd appointed as second Resident of the settlement. 5 June Raffles Institution is founded by Sir Stamford Raffles. 1824 17 March The Anglo-Dutch Treaty is signed between Great Britain and the Netherlands. 2 August Singapore becomes a British colony. 1826 Singapore becomes part of the British colony of Straits Settlements under the rule of the East India Company, together with Malacca and Penang. 27 November Robert Fullerton was installed as the first Governor of the Straits Settlements. 1830 Singapore comes under the Presidency of Bengal in India. 12 November Robert Ibbetson was appointed as the second Governor of the Straits Settlements. 1832 December Singapore becomes the centre of government of the Straits Settlements. 1833 7 December Kenneth Murchison was appointed as the third Governor of the Straits Settlements. 1834 1 August Singapore Free School was established. 1836 18 November Sir Samuel George Bonham was appointed as the fourth Governor of the Straits Settlements. 1842 St. Margaret's Girls School was founded by Maria Tarn Dyer, the first and oldest all-girls school in Singapore. 1843 Thomas Dunman, the first full-time police chief of Singapore, improves the police force as well as the pay and working hours of policemen. January Singapore became ruled directly from the British East India Company. August William John Butterworth was appointed as the Governor of the Straits Settlements. 1844 4 March Raffles Girls' School was established at Bras Basah Road. 25 July The Tan Tock Seng Hospital begins operation. 1845 15 July The Straits Times was established as The Straits Times and Singapore Journal of Commerce. 1852 A new deep harbour called New Harbour, later known as Keppel Harbour, is built. 22 July St Joseph's Institution [as St John's Institution] was established at Bras Basah Road. 1854 Convent of the Holy Infant Jesus (CHIJ) was established. 1855 21 March Edmund Augustus Blundell was appointed as the Governor of the Straits Settlements upon the retirement of William John Butterworth. 1858 Singapore is placed under the hierarchy of the Government of India (Calcutta), remaining as part of the Straits Settlements. 8 March Commercial Square is renamed Raffles Place. 1859 6 August Major General Sir Orfeur Cavenagh was appointed as the Governor of the Straits Settlements. The Singapore Botanic Gardens was founded. 1862 8 September Saint Andrews School was founded at Chin Chew Street. 1867 16 March Major General Sir Harry St. George Ord was appointed as the Governor of the Straits Settlements. 1 April Straits Settlements become a crown colony of British Empire. The Legislative Council of the Straits Settlements was formed. 1869 17 November The Suez Canal opens, and Singapore enjoys the increase in trade. 1873 4 November Sir Andrew Clarke was appointed as the Governor of the Straits Settlements upon the retirement of Sir Harry St. George Ord. 1875 8 May Sir William Jervois was appointed as the Governor of the Straits Settlements. 1876 Victoria School was established in Kampong Glam. 1877 3 April Major General Edward Archibald Harbord Anson was appointed as the Acting Governor of the Straits Settlements. 3 May The Chinese Protectorate is set up, and William Pickering was the first Protector appointed. August Sir William Cleaver Francis Robinson was appointed as the Governor of the Straits Settlements. 1879 10 February Major General Edward Archibald Harbord Anson was appointed as the Acting Governor of the Straits Settlements. 1880 16 May Sir Frederick Weld was appointed as the Governor of the Straits Settlements. 1885 Gan Eng Seng School was established at Telok Ayer Street. 1886 1 March Anglo-Chinese School was established at Amoy Street. 1887 25 July Methodist Girls' School was established at Short Street. 17 October Sir Cecil Clementi Smith was appointed as the Governor of the Straits Settlements. 1 December The Raffles Hotel was established. 1888 Henry Ridley becomes the first scientific director of the Singapore Botanic Gardens. The Singapore Fire Brigade was formed. 1892 The Tanjong Pagar Police Station opens, and many Sikh policemen were recruited. Holy Innocents' High School was established. 1893 30 August William Edward Maxwell was appointed as the Acting Governor of the Straits Settlements. 1894 1 February Sir Charles Bullen Hugh Mitchell was appointed as the Governor of the Straits Settlements. 1899 1 July Singapore Chinese Girls' School was established at 52 Hill Street. 7 December Sir Charles Bullen Hugh Mitchell died while in the office as Governor of the Straits Settlements. James Alexander Swettenham was appointed as the Acting Governor of the Straits Settlements.

20th century