 The Old Baltimore Pike was built before 1720 . The road was known as the Great Road and ran between Head of Elk ( now Elkton , Maryland ) and Christiana Bridge . It was later known as the Christiana @-@ Elkton Turnpike before becoming Old Baltimore Pike . This path served as a major connection between Philadelphia and Baltimore in addition to providing access between the shipping area of Christiana Bridge and agricultural areas in northern Delaware , northern Maryland , and southeastern Pennsylvania . In 1723 , Welsh Tract settlers pushed for the road to be improved . This road was part of the Washington – Rochambeau Revolutionary Route that was used by the French army during their march from Newport , Rhode Island to Yorktown during the Revolutionary War , passing through the area in September 1781 . 
 The Old Baltimore Pike was built before 1720 . The road was known as the Great Road and ran between Head of Elk ( now Elkton , Maryland ) and Christiana Bridge . It was later known as the Christiana @-@ Elkton Turnpike before becoming Old Baltimore Pike . This path served as a major connection between Philadelphia and Baltimore in addition to providing access between the shipping area of Christiana Bridge and agricultural areas in northern Delaware , northern Maryland , and southeastern Pennsylvania . In 1723 , Welsh Tract settlers pushed for the road to be improved . This road was part of the Washington – Rochambeau Revolutionary Route <a href='null_relcl' title='1'><mark>that</mark></a>was used by the French army during their march from Newport , Rhode Island to Yorktown during the Revolutionary War , passing through the area in September 1781 . 
Da Old Baltimore Pike was built b4 1720 . Tdaroad was known as thdareat Road and ran between Head of Elk ( now Elkton , Maryland ) and Christiana Bridge . It was later known as the Christiana @-@ Elkton Turnpike befob4oming Old Baltimore Pike . This path served as a major connection between Philadelphia and Baltimore in addition to providing access between thedaipping area of Christiana Bridge and agricultural areas in northern Delaware , northern Maryland , and southeastern Pennsylvania . In 1723 , Welsh Tract settlers pushed fir the dad to b improved . This road was part of the Wdaington – Rochambeau Revolutionary Route was used by the French army durin their march from Newport , Rhode Island to Yorktown ddurinthe Revolutionary War , passing thru the ardain September 1781 .