1 June 1954. Linus’ security blanket was introduced in the Peanuts comic strip. The blanket was featured throughout the remainder of the strip’s run. Linus can be seen carrying the blanket around and sucking his thumb. Toward the end of the strip’s run, however, the security blanket appeared less and less, usually only when a crucial plot point in the strip required it, and it seems that Linus was starting to outgrow it.

What are your security blankets?