It's a bit tricky to pinpoint exactly which was the very first comic, but one of the early contenders is 'The Adventures of Obadiah Oldbuck'. It was created by Rodolphe T枚pffer in 1837 and is seen as a significant early example of the comic form.
The first comic is a bit hard to pinpoint exactly. But some early examples that are often considered among the firsts were in the 19th century, like 'The Adventures of Obadiah Oldbuck'.
The honor of being the first comic book usually goes to 'The Adventures of Obadiah Oldbuck'. It marked the beginning of a new form of storytelling through sequential art. This early comic had a significant impact on the development of the comic book industry as we know it today.