<Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2007) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (September 2007) (Learn how and when to remove this template message) </Td> </Tr> <P> Originally, US 72 followed US 45 to Selmer and followed a route west to Memphis . In 1931, US 64 replaced US 72 between Memphis and Selmer . In 1935, US 72 was routed to Memphis through Mississippi from Corinth removing the extension on US 45 to Selmer . </P> <P> As late as the early 1970s, US 72 followed State Route 57 (Poplar Avenue) from Collierville to its western terminus at East Parkway N. (which carried US 64, US 70, and US 79, as well as State Route 1). During the mid-1980s until the early 2000s, U.S. 72's westbound route in midtown Memphis was changed to switch from Poplar Avenue to a westbound off - ramp connection with Union Avenue (just as its name changed from Walnut Grove Road), instead of following Poplar west to East Parkway North . (In the same trend, eastbound US 72 ignored East Parkway South and continued eastward on Union--joining SR 57--until an exit ramp deposited the two highways onto eastbound Poplar .) Some signs still remain from this route change . </P>

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