Question: What century were the Leiper Canal and Duluth Ship Canal built?

full_context: Document 1: Delaware and Hudson Canal: The Delaware and Hudson Canal was the first venture of the Delaware and Hudson Canal Company, which would later build the Delaware and Hudson Railway. Between 1828 and 1899, the canal's barges carried anthracite coal from the mines of Northeastern Pennsylvania to the Hudson River and thence to market in New York City.
Document 2: Duluth South Breakwater Inner Light: The Duluth South Breakwater Inner Light is a lighthouse on the south breakwater of the Duluth Ship Canal in Duluth, Minnesota, United States. It forms a range with the Duluth South Breakwater Outer Light to guide ships into the canal from Lake Superior.
Document 3: Lehigh Canal: The Lehigh Canal or the Lehigh Navigation Canal is a 'navigation' type canal. The canal begins at the mouth of Nesquehoning Creek on the Lehigh River in Eastern Pennsylvania.
Document 4: Duluth North Pier Light: The Duluth North Pier Light is a lighthouse on the north breakwater at the entrance to the Duluth Ship Canal.
Document 5: Sacramento Deep Water Ship Channel: The Sacramento Deep Water Ship Channel (also known as Sacramento River Deep Water Ship Channel or SRDWSC) is a canal from the Port of Sacramento in West Sacramento, California to the Sacramento River, which flows into San Francisco Bay. It was completed by the United States Army Corps of Engineers in 1963. The channel is about 30 feet (9 m) deep, 200 feet (61 m) wide and 43 miles (69 km) long.
Document 6: Lehigh Coal and Navigation Company: The Lehigh Coal and Navigation Company (LCAN) (1988–2010) was a modern-day anthracite coal mining company headquartered in Pottsville, Schuylkill County, Pennsylvania, U.S. which acquired many of the 'Old Company' (LC&N) properties and re-launched the Lehigh Coal Companies brand in 1988. The LCAN ran strip mining operations in the Panther Creek Valley east of Lansford along U.S. Route 209; with vast properties dominating the coal areas of Tamaqua, Coaldale, and Lansford. These properties are largely the same real estate assets as were acquired in the Panther Creek Valley by the predecessors: the haphazard Lehigh Coal Mine Company (1792-1822) and the builders of the Lehigh Canal and first American blast furnaces, the Lehigh Coal & Navigation Company (Old Company, LC&N), which spearheaded the U.S. Industrial revolution. The new company was incorporated in 1988 acquiring LC&N assets after bankruptcy proceedings, taking the name of the original.
Document 7: Superior Bay: Superior Bay is a narrow inlet of Lake Superior along the border of Minnesota and Wisconsin. It is 7 miles long and 0.5 miles wide. A small strait connects it to the Saint Louis Bay to the west, into which the Saint Louis River empties. Superior Bay is located between the city of Superior and the Park Point neighborhood of Duluth. The Duluth Harbor Basin is nearby.
Document 8: North Shore Channel: The North Shore Channel is a drainage canal built between 1907 and 1910 to flush the sewage-filled North Branch of the Chicago River down the Chicago Sanitary and Ship Canal. The sewage carrying duty has been largely taken over by the Chicago Deep Tunnel, but there are still occasional discharges due to heavy rains.
Document 9: Leiper Canal: Early in the 19th century, the Leiper Canal built in 1828-29 during the middle of the American canal age ran about 3 mi along Crum Creek in Delaware County to its mouth in Eastern Pennsylvania's Delaware Valley carrying its owners quarried products to docks on the Delaware River tidewater until 1852.
Document 10: Duluth South Breakwater Outer Light: The Duluth South Breakwater Outer Light is a lighthouse at the end of the south breakwater of the Duluth Ship Canal. It forms a range with the Duluth South Breakwater Inner Light.
Document 11: Duluth, Minnesota: Duluth is a major port city in the U.S. state of Minnesota and the county seat of Saint Louis County. Duluth has a population of 86,110 and is the second-largest city on Lake Superior's shores, after Thunder Bay, Ontario, in Canada; it has the largest metropolitan area on the lake. The Duluth MSA had a population of 279,771 in 2010, the second-largest in Minnesota.
Document 12: Delaware and Raritan Canal: The Delaware and Raritan Canal (D&R Canal) is a canal in central New Jersey, United States, built in the 1830s, that served to connect the Delaware River to the Raritan River. It was intended as an efficient and reliable means of transportation of freight between Philadelphia and New York City, especially coal from the anthracite fields in eastern Pennsylvania. Before the advent of the railroads, the canal allowed shippers to cut many miles off the route from the Pennsylvania coal fields, down the Delaware, around Cape May, and up along the (occasionally treacherous) Atlantic Ocean coast to New York City.
Document 13: Pennsylvania Canal (Delaware Division): The Delaware Division of the Pennsylvania Canal, more commonly called the Delaware Canal, runs for 60 mi parallel to the right bank of the Delaware River from the entry locks near the mouth of the Lehigh River and terminal end of the Lehigh Canal at Easton south to Bristol. At Easton, which today is the home of The National Canal Museum, the Delaware Canal also connected with the Morris Canal built to carry anthracite coal to energy starved New Jersey industries. Later, with a crossing-lock constructed at New Hope, the New Hope 'outlet lock' (1847) connected by Cable Ferry to a feeder navigation/canal at Bull's Island along the opposite shore from Lumberville, which ran over 22 mi south along the left bank through Trenton to Bordentown, the west end of the Delaware and Raritan Canal (1834) to New York City via New Brunswick. as part of the solution to the United States' first energy crisis. The Commonwealth of Pennsylvania built the Delaware canal to feed anthracite stone coal to energy-hungry Philadelphia as part of its transportation infrastructure building plan known as the Main Line of Public Works—a legislative initiative creating a collection of self-reinforcing internal improvements to commercial transportation capabilities.
Document 14: Duluth Ship Canal: The Duluth Ship Canal is an artificial channel cut through Minnesota Point, providing direct access to Duluth harbor from Lake Superior. Begun privately in 1871, it was put under federal supervision and maintenance several years later. It is still an important component of the harbor facilities.
Document 15: Schuylkill Canal: Schuylkill Canal is the common, but technically inaccurate, name for the Schuylkill Navigation, a 19th-century commercial waterway in and along the Schuylkill River in the U.S. state of Pennsylvania. The "canal" was actually a system of interconnected canals and slack-water pools in the river, which is called a navigation. Chartered in 1815, the Schuylkill Navigation opened in 1825 to provide transportation and water power. At the time, the river was the least expensive and most efficient method of transporting bulk cargo, and the eastern seaboard cities of the U.S. were experiencing an energy crisis due to over forestation. It fostered the mining of anthracite coal as the major source of industry between Pottsville and eastern markets. Along the tow-paths, mules pulled barges of coal from Port Carbon through the water gaps to Pottsville; locally to the port and markets of Philadelphia; and some then by ship or through additional New Jersey waterways, to New York City markets.
ground_truth: 19th century