Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Corn laws (Great Britain), 2 canlyniadau
- Free trade -- Great Britain, 1 canlyniadau
- Industrial revolution -- Great Britain, 1 canlyniadau
- Landowners -- Taxation -- Wales, 1 canlyniadau
- Poaching -- Wales, 1 canlyniadau
- Land use -- Effect of taxation on -- Great Britain, 1 canlyniadau
- Manufacturing industries -- Great Britain, 1 canlyniadau