Question: when does Plum Island Light built which has the same design as Great Captain Island Lighthouse?
Context: Falkner Island Light, also known as the Faulkner Island Lighthouse, is a lighthouse in Connecticut, United States, on Falkner Island which is off Guilford Harbor on Long Island Sound.  The lighthouse was constructed in 1802 and commissioned by President Thomas Jefferson.  The lighthouse has had three keeper's houses: the original house of 1802 was rebuilt in 1851 and then again in 1871.  The 1871 keeper's house survived to 1976, when it was destroyed by fire; the Coast Guard repaired and automated the lighthouse two years later.  A volunteer group, the Faulkner's Light Brigade, has undertaken the restoration and preservation of the lighthouse since 1991, completing the last major restoration work in March 2011.  Access to Falkner Island and the light is restricted during the nesting season of the roseate terns from May to August yearly.  The Falkner Island Lighthouse, as the second oldest extant lighthouse in Connecticut, is listed on the National Register of Historic Places. The first Corregidor Island Lighthouse was a historic lighthouse located on the island of Corregidor, in the province of Cavite, Philippines.  The light station was one of the most important lights in the archipelago.  It was established in 1853 to guide ships to the entrance of Manila Bay on their way to the port of Manila, the most important trading center in the country.  This light occupies the converging point of two lines of approach for vessels from the China Sea which steer for the entrance of the Manila Bay.  Vessels from Hong Kong and the ports of China to the northwest first sight the Capones Island light off the southwest coast of Zambales.  Vessels from ports of Indo-China first sight the Corregidor lights in the center.  Vessels from Singapore, Indonesia, India, and all the ports of the Philippine Islands, to the south, first sight the Cabra Island light.  All lines converge on Corregidor light at the bay entrance. There have been many Falkner Island Light keepers throughout the history of the lighthouse.  The Falkner Island Lighthouse is a lighthouse in Connecticut, United States, off Guilford Harbor on Long Island Sound.  The lighthouse was constructed in 1802 and commissioned by President Thomas Jefferson, warning of dangerous shoals and shallows in the area.  Falkner Island Light is the second oldest extant lighthouse in Connecticut and is listed on the National Register of Historic Places. The Dog Island Lighthouse on Dog Island in Foveaux Strait is New Zealand's tallest lighthouse, and one of its oldest.  It is notable for its masonry construction, and is a work example by an engineer who was prominent at the time.  The lighthouse employed the first revolving beam in New Zealand, and the unique original light apparatus was in use for 60 years.  Dog Island Lighthouse is one of the most distinct lighthouses in New Zealand, with only two others having stripes painted on it for better daytime-conspicuity.  The lighthouse is registered by Heritage New Zealand as a Category I structure, and the adjacent lighthouse keepers cottage has a Category II registration.  Originally operated by three lighthouse keepers, the structure has since 1989 been remote controlled from Maritime New Zealand's Wellington office, with Dog Island since having been uninhabited.  Dog Island Lighthouse has twice featured on New Zealand stamps. The Plum Island Range Lights are a pair of range lights located on Plum Island in Door County, Wisconsin.  They were part of the Plum Island United States Life-Saving Station.  Plum Island was transferred to the United States Fish and Wildlife Service in 2007 and became part of the Green Bay National Wildlife Refuge.  The life-saving station was listed on the National Register of Historic Places in 2010.  Plum Island is closed to the public to protect ground nesting migratory birds. The Fire Island Lighthouse is a visible landmark on the Great South Bay, in southern Suffolk County, New York on the western end of Fire Island, a barrier island off the southern coast of Long Island.  The lighthouse is located within Fire Island National Seashore and just to the east of Robert Moses State Park.  It is part of the Fire Island Light Station which contains the light, keepers quarters, the lens building containing the original first-order Fresnel lens, and a boat house. Blackwell Island Lighthouse, which is also known as Welfare Island Lighthouse and Roosevelt Island Lighthouse is a stone lighthouse built by New York City in 1872.  It is at the northeast tip of Roosevelt Island in the East River in Lighthouse Park.  It was named to the National Register of Historic Places on March 16, 1972 and was designated a New York City Landmark on March 23, 1976. Great Captain Island Lighthouse is a lighthouse on Great Captain Island in the western Long Island Sound off the coast of Greenwich, Connecticut, United States.  Built in 1829, the first lighthouse, made of stone, was of such poor construction that the walls were severely cracked a decade later.  In 1868, a new granite dwelling with attached lantern was completed.  The lighthouse is of the same design as lighthouses at Sheffield Island in Norwalk; Morgan Point in Noank; Old Field Point Light and Plum Island in New York; and Block Island North in Rhode Island.  In 1890, a fog whistle was added, in 1905 a siren was installed.  The lighthouse was deactivated in 1970 when a skeletal tower replaced it.  The Town of Greenwich acquired the property in 1973 and had full-time caretakers on the site until the lighthouse became too dilapidated in 2003.  A successful restoration effort was completed in 2009 and a non-navigational light was activated in 2012.  In 2010, a memorial plaque was installed to "honor the 23 people who lived in Greenwich, or had a connection to the town", who died in the September 11, 2001 attacks.  In 1991, the Great Captain Island Light was added to the National Register of Historic Places. Great Captain Island, also known more familiarly as "Great Captain's Island," is an island off the coast of Greenwich, Connecticut.  The 17.2 acre island is the largest of a three-island group that also includes Little Captain and Wee Captain.  The island is a remnant of a glacial moraine and has a large glacial erratic on the southern side, the island's east and west sides are connected by a tombolo.  The island has had several owners, but has been owned in whole by the Town of Greenwich since 1973.  The island is home to the Great Captain Island Light, a 19th-century lighthouse that was restored in 2009 and relit as a non-navigational aid in 2012.  The actual navigation aid is a skeletal tower erected in 1970.  Great Captain Island is one of the state's 26 "important bird areas" according to the Connecticut Audubon Society.  The town operates a ferry service to and from the island from about the second week in June through the second week of September.  Trails have been laid out for visitors, and the western part of the island has picnic tables, grills, restrooms, and posted swimming areas.  The island is open year round, with a ferry running during the summer.  No public tours of the lighthouse or island are available. Plum Island Light, also known as Plum Gut Light, is located on the western end of Plum Island, which lies east of Orient Point which in turn is at the end of the North Fork of Long Island in the US state of New York.  An historic granite lighthouse originally built in 1869 sits at the site, but no longer serves as an active aid to navigation.  It was listed on the National Register of Historic Places in 2011.  A short distance northwest of the granite lighthouse
Answer: 1869