Approximately 3,600 political prisoners were transported to the Australian colonies, many of whom arrived in waves corresponding to political unrest in Britain and Ireland. They included the First Scottish Martyrs in 1794; British Naval Mutineers (from the Nore Mutiny) in 1797 and 1801; Irish rebels in 1798, 1803, 1848 and 1868; Cato Street Conspirators (1820); Scots Rebels (1820); Yorkshire Rebels (1820 and 1822); leaders of the Merthyr Tydfil rising of 1831; the Tolpuddle Martyrs (1834); Swing Rioters and Luddites (1828–1833); American and French-Canadian prisoners from the Upper Canada rebellion and Lower Canada Rebellion (1839), and Chartists (1842).