
 1845 - Bef 1850  (< 4 years)
	
		
			|  | Date | Event(s) | 
	
| 1 | 1845 | 1845—1845: Tarmac laid for first time (in Nottingham)17 Mar 1845—17 Mar 1845: The rubber band patented by Stephen Perry
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| 2 | 1846 | 10 Sep 1846—10 Sep 1846: The sewing machine is patented by Elias Howe
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| 3 | 1847 | 1847—1847: US Mormons make Salt Lake City their centreJan 1847—Jan 1847: An anesthetic used for the first time in England (James Simpson used ether to numb the pain of labour)
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| 4 | 1848 | 1848—1848: First commercial production of chewing gum24 Jan 1848—24 Jan 1848: Gold found at Sutter's Mill, California -  starts the California gold rush11 Jul 1848—11 Jul 1848: Waterloo railway station in London opens
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| 5 | 1849 | 1849—1849: Florin (2 shilling coin) introduced as the first step to decimalisation -  which finally
occurred in 1971!
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