For #StPatricksDay I'll note that it was on #ThisDayInHistory in 1846 that one of the first waves of emigrants driven out by the #GreatHunger left Dublin for New York. Within five years a full million had left #Ireland; the population there has still not reached pre-famine level.

HistoPol (#HP) ๐ด ๐บ๐ธ ๐ด
in reply to Liam O'Mara IV, PhD • • •๐
#Irish #History
You might want 2 add the #PotatoeFamine hashtag.
Only due to this new crop which originates in #Peru, was the #IrishPopulationExplosion possible: from approximately 2 million in 1700 to 8.5 million by 1845.
The algae (#PhytophthoraInfestans) that caused successive crop failures of the imported #Monoculture staple diet, led 2 a #PotatoDisease called #LateBlight. It originated in the #Toluca Valley in ๐ฒ๐ฝ and spread from the ๐บ๐ธ 2 ๐ฎ๐ช.
sheetofhistory.com/2025/12/theโฆ
The Great Irish Famine: How the Potato Blight Claimed a Million Lives
sheet of history (sheet of histoey)