- Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States, with a population of 1,603,797 in the 2020 census. The city is the urban core of the larger Delaware Valley, also known as the Philadelphia metropolitan area, the eighth-largest metropolitan region in the nation with 6.245 million residents in its metropolitan statistical area, and 7.366 million residents in its combined statistical area.
- Lake Elmo, Washington County, Minnesota, was named by A. B. Stickney, now of St. Paul, Minn.,, from a nearby lake, that had been named from the novel “St. Elmo.” The town was formerly called Oakdale from the many Black Oak (Quercus nigra) trees that grow hereabouts. It is not known where the novelist found the name for her book, but it is supposed she “evolved it out of the depth of her own consciousness.” She did not get it from that corposant known as “St. Elmo’s fire,” which was named for St. Elmo, the patron saint of navigators.