Legionnaires' disease acquired its name in July 1976, when an outbreak of pneumonia occurred among people attending a convention of the American Legion at the Bellevue-Stratford Hotel in Philadelphia. Of the 182 reported cases, mostly men, 29 died. On January 18, 1977, the causative agent was identified as a previously unknown strain of bacteria, subsequently named "Legionella", and the species that caused the outbreak was named "Legionella pneumophila". Outbreaks of Legionnaires' disease receive significant media attention, but this disease usually occurs in single, isolated cases not associated with any recognized outbreak. When outbreaks do occur, they are usually in the summer and
History of the Irish Americans in Philadelphia History of the Irish Americans in Philadelphia People of Irish descent form the largest ethnic group in the city of Philadelphia and its surrounding counties. The Irish have lived in Philadelphia since the pre-American Revolution period. Irishmen had participated in pro-Revolutionary activities in Philadelphia during the Revolutionary War. Like many American cities in the 19th century, Philadelphia, which was once a Quaker stronghold, changed dramatically with the influx of European immigrants. The first major influx of Irish came in 1844 from rural areas, spurred by the Irish Famine. Because of the Quakers belief and pledge of religious tolerance, Irish Catholics