Conversation so far:
when did the queen become queen of england
Queen Elizabeth II became queen on February 6, 1952, and was crowned on June 2, 1953.
who is the longest reigning british monarch
Queen Elizabeth II became the longest-reigning British monarch on 9 September 2015 when she surpassed the reign of her great-great-grandmother Victoria.
how many years did queen victoria reign
Known as the Victorian era, Queen Victoria's reign of 63 years and seven months was longer than that of any of her predecessors.
what did queen victoria accomplish during her reign
Queen Victoria presided over a time of industrial expansion, educational advances, the abolition of slavery and workers' welfare.

Question: where does the epithet grandmother of europe come from
Self-contained rewrite: where does queen victoria's epithet, grandmother of europe, come from