By 1909, Will's company was producing 120,000 cases of Corn Flakes a day. John, who resented his brother's success, filed suit against Will's company in 1906 for the right to use the family name.
The resulting legal battle, which included a trial that lasted an entire month, ended in December 1920 when the Michigan Supreme Court ruled in Will's favor.
In 1931, the Kellogg Company announced that most of its factories would shift towards 30-hour work weeks, from the usual 40.
From 1969 to 1970, the slogan Kellogg's puts more into your day was used on Sunday morning TV shows.