Despite the tunnel being examined extensively during the 19th century by Robinson , Charles Wilson , and Charles Warren , they all missed discovering the inscription , probably due to the accumulated mineral deposits making it barely noticeable .
The tunnel was discovered in 1838 by Edward Robinson .
Despite the tunnel being examined extensively during the 19th century by Edward Robinson , Charles Wilson , and Charles Warren , they all missed discovering the inscription , probably due to the accumulated mineral deposits making it barely noticeable .
The tunnel was discovered in 1838 by Edward Robinson .