Pittsburgh's Irish population had already reached 19% by 1790, decades before the Great Famine drove a massive wave of immigration to the US.

The city's steel mills, labor movements and political leadership were shaped by Irish workers and their descendants. #StPatricksDay
theconversation.com/how-the-em…

theconversation.com/how-the-em…

How the Emerald Isle shaped the Steel City – Pittsburgh’s rich Irish history

Long before Pittsburgh’s modern Irish celebrations existed, Irish immigrants helped shape the city in the 19th century via the railroads, canals and steel industry.

^{The Conversation}