The Maritime history of the United Kingdom involves events including shipping, ports, navigation, and seamen, as well as marine sciences, exploration, trade, and maritime themes in the arts from the creation of the kingdom of Great Britain as a united, sovereign state, on 1 May 1707 in accordance with the Treaty of Union, signed on 22 July 1706. Until the advent of air transport and the creation of the Channel Tunnel, marine transport was the only way of reaching the British Isles. For this reason, maritime trade and naval power have always had great importance.
Prior to the Acts of Union, 1707, the maritime history of the British Isles was largely dominated by that of England. (See Maritime history of England for more details.)
The main British export in the 18th century was corn.
Lloyd's List was established in 1734 and Lloyd's Register in 1764/5. The Marine Society was set up in 1756 with the aim of sending poor boys to sea.
Steam technology was first applied to boats in the 1770s but sailing ships continued to be developed. In 1794 an experimental steam powered ship called the Kent was built which showed designers the way forward. Nathanial Symonds demonstrated a sinking boat in 1729.
Towards the end of the century, the Napoleonic Wars started with Napoleon, later crowned as French Emperor, and naval battles continued into the 19th century.
In 1801 a steamship called the Charlotte Dundas ran trials on a canal near Glasgow, towing barges. In 1815 Pierre Andriel crossed the English Channel aboard the steamship Élise. By the mid-century steamboats were a common sight on British rivers and canals. Regular steamship sailings across the Atlantic started in the 1830s.