1915: Company Drops "Mutual" From Name
In 1915, the Dakota Mutual Life Insurance Company dropped "Mutual" from their name and became the Dakota Life Insurance Company.
After operating for six years as a publicly-traded company, Dakota Life Insurance Company officially dropped "Mutual" from its name.
You can read the story of the company becoming a 'publicly traded company' here.
Later, in 1925, the company changed names again. This time, becoming what they're known as today: Midland National Life Insurance Company.
You can read all the posts involving name changes for the company here.