Article: In 1845, Ireland was hit by a potato blight. In the next four years over a million Irish people died and another million emigrated in what became known as the Great Famine. In Ireland, Victoria was labelled "The Famine Queen". She personally donated £2,000 to famine relief, more than any other individual donor, and also supported the Maynooth Grant to a Roman Catholic seminary in Ireland, despite Protestant opposition. The story that she donated only £5 in aid to the Irish, and on the same day gave the same amount to Battersea Dogs Home, was a myth generated towards the end of the 19th century.

Question: When did the potato blight begin?
1845