The strip debuted online on May 8, 2010.

The strip debuted on December 2, 1979 and ran until December 3, 1983.

The strip debuted in 1930 and was carried at its peak by 900 newspapers.

The strip debuted in July 1904 and ran until December 1906.

The strip debuted in 1913, distributed by Associated Newspapers.

The strip debuted in the December 2005 issue, on the last page of the magazine.

The strip debuted on November 15, 1971, in more than 175 newspapers, and ran until 1975.

The strip debuted September 10, 2010, and updates weekdays.

The strip debuted in November, 1997, and is considered to be one of the first major webcomics.

The strip debuted on November 22, 1976, and at its peak appeared in over 1,400 newspapers.