Title: First Fleet
Content:   The First Fleet was a fleet of 11 ships that brought the first European settlers to Australia. It was made up of two Royal Navy vessels, three store ships and six convict transports. On 13 May 1787 the fleet under the command of Captain Arthur Phillip, with over 1400 people (convicts, marines, sailors, civil officers and free settlers), left from Portsmouth, England and took a journey of over 24000 km and over 250 days to eventually arrive in Botany Bay, New South Wales, where a penal colony would became the first European settlement in Australia.
Title: Australia Day
Content:  On 13 May 1787 a fleet of 11 ships, which came to be known as the First Fleet, was sent by the British Admiralty from England to New Holland. Under the command of Naval Captain Arthur Phillip, the fleet sought to establish a penal colony at Botany Bay on the coast of New South Wales, which had been explored and claimed by Lieutenant James Cook in 1770. The settlement was seen as necessary because of the loss of the Thirteen Colonies in North America. The Fleet arrived between 18 and 20 January 1788, but it was immediately apparent that Botany Bay was unsuitable. On 21 January, Phillip and a few officers 
Title: History of Australia
Content:  established with the arrival of the First Fleet of 11 vessels under the command of Captain Arthur Phillip in January 1788. It consisted of over a thousand settlers, including 778 convicts (192 women and 586 men). A few days after arrival at Botany Bay the fleet moved to the more suitable Port Jackson where a settlement was established at Sydney Cove on 26 January 1788. This date later became Australia's national day, Australia Day. The colony was formally proclaimed by Governor Phillip on 7 February 1788 at Sydney. Sydney Cove offered a fresh water supply and a safe harbour, which Philip described 
Title: Australia (continent)
Content:  Cook and crew made their first landfall on the mainland of the continent at a place now known as the Kurnell Peninsula. It is here that James Cook made first contact with an Aboriginal tribe known as the Gweagal, who he fired upon, injuring one. His expedition became the first recorded Europeans to have encountered the eastern coastline of Australia. Captain Arthur Phillip led the First Fleet of 11 ships and about 850 convicts into Sydney on 26 January 1788. This was to be the location for the new colony. Phillip described Sydney Cove as being "without exception the finest harbour in the world".
Title: 1790 in Australia
Content:  arrives in Port Jackson – the first ship to land on Australian soil since the First Fleet. Much to the colonists' despair, she contains no fresh supplies, only more convicts. ; 20 June – The Second Fleet arrives in Port Jackson with much needed supplies. It also carries 759 new convicts and the first detachment of the New South Wales Corps. ; July – The first census taken in the colonies reveals the population of NSW to be 1,715 and Norfolk Island to be 524. ; 7 September – Governor Arthur Phillip is speared in the shoulder while speaking with a group of Indigenous Australians, due to a misunderstanding. Acting as interpreter, Bennelong prevents the situation from escalating and the Aboriginals are permitted to leave in peace. ; 18 October – HMS Supply returns from Batavia with more supplies. 
Title: Tenerife
Content:  Florida. Tenerife saw the arrival of the First Fleet to Botany Bay in June 1787, which consisted of 11 ships that departed from Portsmouth, England, on 13 May 1787 to found the penal colony that became the first European settlement in Australia. The Fleet consisted of two Royal Navy vessels, three store ships and six convict transports, carrying between 1,000 and 1,500 convicts, marines, seamen, civil officers and free people (accounts differ on the numbers), and a vast quantity of stores. On 3 June 1787, the fleet anchored at Santa Cruz at Tenerife. Here, fresh water, vegetables and meat were brought on board. Commander of the fleet, Capt. Arthur Phillip and the chief 
Title: European exploration of Australia
Content:  With the loss of its American colonies in 1783, the British Government sent a fleet of ships, the "First Fleet", under the command of Captain Arthur Phillip, to establish a new penal colony in New South Wales. A camp was set up and the flag raised at Sydney Cove, Port Jackson, on 26 January 1788, a date which became Australia's national day, Australia Day. Phillip sent exploratory missions in search of better soils, fixed on the Parramatta region as a promising area for expansion, and moved many of the convicts from late 1788 to establish a small township, which became the main centre of the colony's economic life. Seventeen years after 
Title: Immigration history of Australia
Content:  After the loss of the United States, Britain experienced overcrowding of its prisons and sought to ease the problems by transportation of its prisoners. In 1787 the First Fleet of 11 ships and about 1350 people under the command of Captain Arthur Phillip sailed for Australia. On 26 January 1788 a landing was made at Sydney Cove. The new colony was formally proclaimed as the Colony of New South Wales on 7 February. Other transport fleets bringing further convicts as well as free settlers to the colony followed. As a result of agitation by the free settlers in Sydney, transportation of convicts to Sydney ended in 1840. It continued to the colonies of Van Diemen's Land (where settlement began in 1803) and Moreton Bay (founded 1824, and later renamed Queensland) for some years longer. The small settlement of Perth, founded in 1829 on the Swan 
Title: History of Australia (1788–1850)
Content:  Fleet arrived in Botany Bay but the landing party was not impressed with the site, and moved the fleet to Port Jackson, landing in Sydney Cove on 26 January 1788 (now celebrated as Australia Day). ; 1788 – New South Wales, according to Arthur Phillip's amended Commission dated 25 April 1787, includes "all the islands adjacent in the Pacific Ocean" and running westward to the 135th meridian east. These islands included the current islands of New Zealand, which was administered as part of New South Wales. ;  April 1789 – an outbreak of smallpox decimates local tribes. ; 1790 – the Second 
Title: Journals of the First Fleet
Content:  There are 20 known contemporary accounts of the First Fleet made by people sailing in the fleet, including journals (both manuscript and published) and letters. The eleven ships of the fleet, carrying over 1,000 convicts, soldiers and seamen, left England on 13 May 1787 and arrived in Botany Bay between 18 and 20 January 1788 before relocating to Port Jackson to establish the first European settlement in Australia, a penal colony which became Sydney. At least 12 people on the fleet kept a journal of their experiences, some of which were later published, while others wrote letters home during the voyage 

Question: when did the first fleet arive in australia?
Answer: 18 January 1788.
1788.