>>279746823
Shamrock said Shanks only came to the Holy Land once. The flashback between Shanks and Gaban, showing the Abyss marking on the Red-Hair’s arm, was just 14 years before the story’s events, and Teach scarred Shanks beforehand, when Teach was still rolling with the Whitebeard pirates.

There’s nothing contradictory here, no matter how much you wish it so.