1845—1852: The Irish Potato Famine or the Great Famine was a period of mass starvation, disease and emigration, approximately 1 million people died and a million more emigrated from Ireland.
17 Mar 1845: The rubber band patented by Stephen Perry
2
1846
10 Sep 1846: The sewing machine is patented by Elias Howe
1845 - 1848 (2 years)