Bacon's cipher or the Baconian cipher is a method of (a method of hiding a secret message as opposed to just a ) devised by in 1605. A message is concealed in the presentation of text, rather than its content.
Example:
hello guys!im glad to meet you.
AABBBAABAAABABAABABAABBAB AABBABAABBBABBABAAAB ABAAAABABB AABBAABABAAAAAAAAABB BAABAABBAB ABABBAABAAAABAABAABA BABBAABBABBAABB