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1845 CE The industrial age World history

Irish Potato Famine Deepens

The Great Famine worsened from 1845.

Setting the scene

The Irish Potato Famine, also called the Great Hunger, deepened in 1845 when Phytophthora infestans, a water mold causing potato blight, arrived in Ireland. The blight, which had devastated crops in North America, destroyed 40% of Ireland's potato crop in 1845. This was catastrophic because Ireland's population of 8.5 million depended heavily on potatoes—about one-third of the population, primarily poor tenant farmers, relied on potatoes as their staple food, eating 10-14 pounds daily. The potato's high yield on small plots had enabled population growth despite British land policies that concentrated land ownership.

What happened

The famine worsened dramatically in 1846 when the blight destroyed 90% of the crop, and again in 1847-1849. The British government, adhering to laissez-faire economic doctrine, provided inadequate relief. Prime Minister Robert Peel imported corn from America in 1845-1846, but his successor Lord John Russell relied on workhouses and soup kitchens, and allowed food exports from Ireland to continue—grain and livestock were shipped to England while Irish starved. Charles Trevelyan, the Treasury official in charge, viewed the famine as divine providence to reform Irish character.

Why it still matters

The famine killed approximately 1 million people from starvation and disease (typhus, cholera), and forced 2 million to emigrate, primarily to America, reducing Ireland's population by 25%. It devastated Irish society, destroyed the Irish language in many areas, and created lasting bitterness toward Britain. The famine's legacy includes the Irish diaspora—today 40 million Americans claim Irish ancestry—and Irish nationalism. It remains a contentious historical issue, with debates over whether British policy constituted genocide by neglect. The famine fundamentally altered Ireland's demographics, culture, and relationship with Britain.

Background

Emigration and death reshaped Ireland.

Sources

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