Public School No. 19

St. Hedwig's Roman Catholic Church is a historic Roman Catholic church located at Linden and S. Harrison Streets in Wilmington, New Castle County, Delaware. St. Hedwig's serves as the only architecturally visible anchor or centerpiece for the Wilmington Polish community. The parish operated St. Hedwig's High School from 1960 to the 1970s. It was built in 1904, and is a cruciform shaped church constructed of soft gray brick (concrete block with brick veneer) with details in limestone. It is in the late Gothic Revival style. The front facade features a set of three double doors flanked by 80' spires terminating in cross gable spires. It was added to the National Register of Historic Places in 1982.

St. Elizabeth High School is a coeducational Catholic high school in Wilmington, Delaware. It is part of the Roman Catholic Diocese of Wilmington. It was founded in 1940 by James M. Grant. Originally, the school was staffed by sisters of the Benedictine order. St. Elizabeth High School shares many facilities with the St. Elizabeth Elementary School and receives a good share of their high school enrollment from the elementary school graduates. The school colors are maroon and gold.

Daniel S. Frawley Stadium is a stadium in Wilmington, Delaware. It is primarily used for baseball, and is the home field of the Wilmington Blue Rocks minor league baseball team. The park was originally known as Legends Stadium when it was built in 1993. It was renamed in 1994 for Wilmington mayor Daniel S. Frawley, who had pushed for a return of the Blue Rocks. The field is named separately for Judy Johnson, a local Negro league baseball star.

Cleland Heights is an unincorporated community in New Castle County, Delaware, United States. It was established in 1952 and consists of about 450 houses.

The Wilmington Rail Viaduct is a series of fills and bridges, about 4 miles (6.4 km) long, that carries the Northeast Corridor through the city of Wilmington, Delaware, above street level. Constructed between 1902 and 1908, the structure consists principally of fills supported by heavy stone retaining walls, punctuated with plate girder bridges over streets, and augmented by a few sections of brick arch viaduct. Its construction is typical of the Pennsylvania Railroad's architectural practices at the time, and the viaduct has been documented by the Historic American Engineering Record and listed on the National Register of Historic Places. Built by the Pennsylvania Railroad (PRR) as part of a series of grade crossing eliminations along the Northeast Corridor, the elevation of the rail line necessitated several other changes to rail infrastructure in Wilmington, including the construction of the Wilmington Shops at the east end of the viaduct, and the construction of the Wilmington Station and adjacent Pennsylvania Railroad Office Building along the elevated right-of-way.

The Delaware Sports Museum and Hall of Fame was founded in 1976. Al Cartwright, who helped found it, was its first president and was inducted to its hall of fame in 1980. The Delaware Sports Museum and Hall of Fame is a member of the International Sports Heritage Association. The Delaware Sports Museum and Hall of Fame contains the Izzy Katzman Sports Library, named after a 1993 inductee.

Chase Center on the Riverfront is a 92,000 square foot convention center in Wilmington, Delaware. It hosts various local concerts, conventions, and banquets for the Wilmington area.

State of Pennsylvania was a steamboat that was built in Wilmington, Delaware in 1923, along with her identical sister ship State of Delaware. The steamboat operated on the Delaware River between her homeport of Wilmington and the cities of Chester and Philadelphia in Pennsylvania, as well as Riverview Park in Pennsville, New Jersey. Regular service on these routes was stopped in 1960. The boat foundered near her dock on the Christina River in 1970. In 1979, she was listed on the National Register of Historic Places. In 1988, the upper decks were destroyed by a deliberately set fire, and in 2005 the hull was removed and scrapped as a hazard to navigation, all without the ship being raised.

Delaware Colony in the North American Middle Colonies consisted of land on the west bank of the Delaware River Bay. In the early 17th century the area was inhabited by Lenape and possibly the Assateague tribes of Native Americans. The first European settlers were Swedes, who established the colony New Sweden at Fort Christina at present day Wilmington, in 1638. The Dutch captured the colony in 1655 and annexed it to New Netherland to the north. The English took control from the Dutch in 1664, and in 1682, William Penn, the Quaker Proprietor of Pennsylvania to the north, leased "the three lower counties on the Delaware River" from James, the Duke of York (future King James II). The Lower Counties of Delaware were governed as part of Pennsylvania from 1682 until 1701, when the Lower Counties petitioned for and were granted an independent colonial legislature; the two colonies shared the same governor until 1776. The English colonists who settled Delaware were mainly Quakers. In the first half of the 18th century, New Castle became (with Philadelphia) the main port of entry to the new world for a quarter of a million Protestant immigrants from the north of Ireland (referred to as "Scotch-Irish" in America and "Ulster Scots" in Northern Ireland). Delaware had no established religion. With the start of the American Revolutionary War, Delaware's assembly voted to break all ties with both Great Britain and Pennsylvania, forming the state of Delaware.

The Wilmington Quicksteps (also known as the Quickstep Club of Wilmington) were an 1884 late-season replacement baseball team in the Union Association. They finished with a 2–16 record and were managed by Joe Simmons. The team played their home games in Union Street Park in Wilmington, Delaware. The ballpark was located on the southwest corner of Union Street and Front Street (now Lancaster Avenue)[1], which at the time was just outside the city limits.[Ballparks of North America, Michael Benson, McFarland Publishing, 1989, p.413] The ballpark's life extended well beyond 1884, hosting minor league games until the 1910s. In 1883, the Inter-State Association of Professional Baseball Clubs was founded, and local capital was invested for a franchise in Wilmington. In 1884, The Interstate Association re-organized under the name "Eastern League" (not to be confused with the double A Eastern League of today); this was one of the first "minor leagues" and is considered a forerunner of today's AAA International League.The Wilmington Quicksteps quickly began to dominate the league, and so highly regarded was the club that major league clubs began to show up to play exhibition games; they defeated both the Washington Nationals and the Baltimore Monumentals during the season. By August, the Quicksteps had already sewn up the league championship with a 50-12 record; their dominance nearly destroyed fan interest in the Eastern League, and even in Wilmington, attendance averaged only 400 per game. Late into the season, Henry Lucas, the Union Association founder and owner of the St. Louis Maroons, convinced Simmons and the Quicksteps to cross over into his league after the Philadelphia Keystones folded. After winning their first game 43 over Washington on August 18, it was all downhill for the Quicksteps. Many Wilmington players no longer felt bound by their contracts and signed for more money with other teams in their new league. Shortstop and team captain Oyster Burns jumped to the Baltimore Monumentals for $900 a month, followed by outfielder Dennis Casey for $700 a month, while Catcher Andy Cusick jumped to the Philadelphia Phillies for $375 a month; each had been making about $150 a month in Wilmington. The only star player to remain in Wilmington was pitcher Ed "The Only" Nolan, who went on to beat Washington for Wilmington's second and last victory. But the Quicksteps could not survive the loss of Burns, Casey and Cusick, and the team finished with a meagre batting average of .175 in the Union Association. By this time, however, St. Louis had already won the pennant, so Wilmington's only perceivable purpose being to fill in the last month of the season. Simmons pulled his team from the field during warm-ups prior to a game against the Kansas City Cowboys on September 21, 1884, having discovered that he would be unable to pay the $60 gate fee to the visiting Cowboys as the attendance was zero. Wilmington subsequently dropped out of the Association and folded, being replaced in the Union Association by the Milwaukee Brewers.

Harlan & Hollingsworth was a Wilmington, Delaware, firm that constructed ships and railroad cars during the 19th century and into the 20th century.

Union Park Gardens is a neighborhood located between Union Street and Lancaster Avenue in Wilmington, Delaware, United States. It was designed by landscape architect John Nolen and the architect Emile G. Perrot of the firm Ballinger & Perrot during the First World War. Union Park Gardens first served as housing for shipyard workers of the United States Shipping Board's Emergency Fleet Corporation.