Transportation
- 1825 – The first horse-drawn omnibuses established in London.
- September 27, 1825 – The world's first modern railway, the Stockton and Darlington Railway, opens in England.
- October 26, 1825 – The Erie Canal opens, providing passage from Albany, New York to Buffalo and Lake Erie.
- 1825: The Ohio and Erie Canal is dug to extend settlement access and commercial traffic to the Ohio River.
- January 30, 1826 – The Menai Suspension Bridge, built by engineer Thomas Telford, is opened between the island of Anglesey and the mainland of Wales.
- April 1, 1826 – Samuel Morey patents the internal combustion engine.
- October 1, 1826 – Opening of the Monkland and Kirkintilloch Railway in Scotland.
- September 21, 1826 – Construction of the Rideau Canal begins in Canada.
- October 7, 1826 – The first train operates over the Granite Railway in Massachusetts.
- 1826 – The first railway tunnel is built en route between Liverpool and Manchester in England.
- February 28, 1827 – The Baltimore & Ohio Railroad is incorporated, becoming the first railroad in America offering commercial transportation of both people and freight.
- April 26–May 24, 1827 - The Royal Netherlands Navy's British-built paddle steamer Curaçao makes the first Transatlantic Crossing by steam, from Hellevoetsluis to Paramaribo.
- July 4, 1829 – George Shillibeer begins operating the first bus service in London.
- October 8, 1829 – Rail transport: Stephenson's Rocket wins the Rainhill Trials.
- November 30, 1829 – The original Welland Canal opens for a trial run with a ceremony at Port Dalhousie.
Read more about this topic: 1820s