Question: What was the trail which inspired the Tasmanian Trail originally known as?

Context paragraphs:
The Amazon Trail: The Amazon Trail is an educational computer game created by MECC.  It was inspired by the popularity of "The Oregon Trail", featuring the areas surrounding the Amazon River and some of its tributaries.  In this 2-D adventure, the player is asked to set out on a journey up the Amazon, hoping to make it to the lost Inca village of Vilcabamba.  Along the way, the player learns about the people who live on and use the river for their survival.  "The Amazon Trail" is known for being significantly more difficult than its predecessors in the franchise, such as "The Oregon Trail".  There are two sequels, "Amazon Trail II" and "Amazon Trail 3rd Edition".  It was released in 1994.

Tasmanian trail: The Tasmanian Trail is a long distance path in Tasmania, Australia.  It was inspired by the Bicentennial National Trail opened on the mainland in 1988.

Warner Trail: The Warner Trail is a 30 mi New England hiking trail which extends from Diamond Hill in the northeast corner of Rhode Island northeast through Norfolk County, Massachusetts to Canton, 13 mi south of Boston.  Its route winds through what has become a primarily suburban landscape punctuated by significant pockets of rural conservation land and state forest.  The terrain is hilly and occasionally rugged with ledges of metamorphic rock and granite; forest cover is of the oak-hickory type.  Completed in 1947, the trail originally stretched from Diamond Hill to the Blue Hills Reservation in Randolph, Massachusetts, but encroaching development had truncated the route by the 1970s.  Plans to rebuild that lost connection were put forward in 2003 as part of Massachusetts' Commonwealth Connections statewide greenway initiative.  The Appalachian Mountain Club and the Friends of the Warner Trail maintain the Warner Trail.

Kal-Haven Trail: The Kal-Haven Trail, formally known as the Kal-Haven Trail Sesquicentennial State Park, is a rail trail that originally ran 33.5 miles (55 km) between South Haven, Michigan, to a point just west of the city of Kalamazoo, Michigan, where there is a trailhead.  In 2008 the trail was extended east from the trailhead to downtown Kalamazoo as part of the Kalamazoo River Valley Trail.

Mount Fitch (Massachusetts): Mount Fitch is the third-highest peak in the Commonwealth of Massachusetts at 3110 ft .  It is located on the ridge between Mount Greylock at 3,491 feet (1,064 m) to its south and Mount Williams at 2,956 feet (901 m) to its north.  The peak sits in the northwest corner of the Town of Adams (originally known as the Town of East Hoosac) in Berkshire County.  The forested summit is approximately 123 yd due west of a local high-point on the Appalachian Trail.  Mount Fitch does not meet the AMC’s prominence criterion of 200 vertical feet of separation from adjacent peaks as outlined in New England’s Four-thousand footers list.  Currently there is no side-spur trail or signage directing a hiker to the summit of Mt. Fitch from the Appalachian Trail; however, there is a wooden placard at the summit itself (pictured at right).  The top is infrequently visited by hikers due to its anonymity, the bushwhack necessary to reach the top and the viewless summit.

Crowsnest Highway: The Crowsnest Highway is an east-west highway in British Columbia and Alberta, Canada.  It stretches across the southern portions of both provinces, from Hope, British Columbia to Medicine Hat, Alberta, providing the shortest highway connection between the Lower Mainland and southeast Alberta through the Canadian Rockies.  The mostly two-lane highway was officially designated in 1932, mainly following a mid-19th century gold rush trail originally traced out by an engineer named Edgar Dewdney.  It takes its name from the Crowsnest Pass, the location at which the highway crosses the Continental Divide between British Columbia and Alberta.

Bicentennial National Trail: The Bicentennial National Trail (BNT), originally known as the National Horse Trail, is one of the longest multi-use, non-motorised, self-reliant trails in the world, stretching 5,330 kilometres from Cooktown, Queensland, through New South Wales and the Australian Capital Territory to Healesville, 60 km north-east of Melbourne, Victoria.  This trail runs the length of the rugged Great Dividing Range through national parks, private property and alongside wilderness areas.  The BNT follows old coach roads, stock routes, brumby tracks, rivers and fire trails.  It was originally intended for horses, but is these days promoted also for cycling and walking, though it is not yet entirely suited to these two activities.

Timber Trail: The Timber Trail, originally known as the Central North Island Rail Trail or Pureora Timber Trail, in the North Island of New Zealand is an 83 km cycleway (also used by walkers and hunters) in Pureora Forest Park, fully opened in 2013, with 35 bridges (built by DoC staff, community max workers, or contractors), including 8 large suspension bridges (one of the longest on a NZ cycleway, much more stable than the swing bridges used on older tracks).  It is one of several cycleways developed as part of the New Zealand Cycle Trail and passes through podocarp forests of rimu, totara, miro, matai and kahikatea, as well as some exotic forestry and regenerating bush.  About half the trail is on the track-bed of an old bush tramway, including a spiral and tunnel.

Elliott Cutoff: The Elliott Cutoff was a covered wagon road that branched off the Oregon Trail at the Malheur River where present-day Vale, Oregon, U.S. is today.  The first portion of the road was originally known as the Meek Cutoff after Stephen Meek, a former trapper who led over 1,000 emigrants into the Harney Basin in 1845.  There were considerable difficulties for the 1845 train and after reaching a hill known as Wagontire, the people left Meek and split into groups.  They turned north at the Deschutes River and finally returned to the traditional Oregon Trail near The Dalles, Oregon.

Hernández–Capron Trail: The Hernández–Capron Trail also known as the Hernández Trail is a historic trail in Eastern Florida (then Mosquito County) extending between New Smyrna in Volusia County and Fort Pierce in St. Lucie County.  It was the first road from St. Augustine to the Fort Pierce area.  It was originally cut through the Atlantic Coastal Ridge by Joseph Marion Hernández.  The majority of the trail is in wilderness, although some portions traverse developed areas.

Supporting paragraphs: Tasmanian trail Bicentennial National Trail
Answer: the National Horse Trail