(new adam and new eve)
FIRST CENTURY ROOTS
The tradition of Our Lady, Undoer of Knots is believed to date back to the time of St Paul.  Here we also learn about original sin and the New Adam and the New Eve from his teachings and lettters in the New Testament:. 
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(1 Cor 15:22, 45) 
CHRIST THE FIRSTFRUITS 
20  But now Christ has been raised from the dead, the firstfruits of those who have fallen asleep. 21 For since death came through a human being, the resurrection of the dead came also through a human being. 22 For just as in Adam all die, so too in Christ shall all be brought to life ------ 45 So, too, it is written, “The first man, Adam, became a living being,” the last Adam a life-giving spirit. 
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(Romans  5:12) 
HUMANITY'S SIN THROUGH ADAM
12 Therefore, just as through one person sin entered the world, and through sin, death, and thus death came to all, inasmuch as all sinned — 
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(Romans  5:19-21)
GRACE OVERFLOWED EVEN MORE
19 For just as through the disobedience of one person the many were made sinners, so through the obedience of one the many will be made righteous.  20 The law entered in so that transgression might increase but, where sin increased, grace overflowed all the more,  21  so that, as sin reigned in death, grace also might reign through justification for eternal life through Jesus Christ our Lord. 
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(120 - 200 ad)
ST IRENAEUS CONTINUES:
"AND SO THE KNOT OF EVE'S DISOBEDIENCE"
St Irenaeus continued this scripture and extended word of mouth, time honored tradition by noting: 
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"And so the knot of Eve's disobedience received its unloosing through the obedience of Mary;  for what Eve a virgin, bound by incredulity,  Mary, a virgin, unloosed by faith."

HISTORICAL TIMELINE 
(from website of St. Peter am Perlach Church) 
By 1700, the Augsburg patrician Jerome Ambrose Long Coat (Canons of St. Peter 1666-1709) founded the famous picture of "Mary Knots". Mary, the nodes of a long tape expectorant, also crushes the serpent's head at her feet. 
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The crushing of the serpent refers to the fact that Mary is exempt from the outset and by special grace from all stain of original sin. It presents itself as "Immaculate conceptio" (Mary as the Immaculate). As described in the Revelation of John, Mary stands before us clothed with the sun as the Apocalyptic woman, the moon under her feet and a crown of 12 stars on her head. The dove is a reference to Mary as the Bride of the Holy Spirit. The painting is the painter Johann Georg Melchior Smithson (1625-after 1707) attributed. (translated from German to English)