British Monarchs
Victoria  1837 to 1901
What was happening in the World in 1851
March 30: second full British census-improvements in data
compared with the first
May 1: Great exhibition of the works of industry of all nations
(crystal palace) exhibition opened in Hyde park
Window Tax replaced by House Duty
Photography is popularised by introduction of "wet collodion" process
Singer produces first practical sewing machine (in USA)
Gold discovered in Australia
Verdi Rigoletto