May NUMBER@1 NUMBER@2 - the date on which the figure who later became PERSON@1 made his first recorded appearance in LOCATION@1 - is traditionally reckoned by `` professors '' as Punch 's LOCATION@2 birthday .

May NUMBER@1 , NUMBER@2 is said by ` Professors ' to be Punch 's LOCATION@2 birthday , for that was the first known date on which the figure who later became Mr. PERSON@2 was seen in LOCATION@3 .
