Horace Mann had a plan to change U.S. education in the mid-19th century by D. making school free to all students.
<h3>What did Horace Mann call for?</h3>
Horace Mann was an abolitionist politician who believed that it was important that every child get an education.
He believed that it was the duty of the government to provide this education for free to all students, and he contributed immensely to the public school system as we know it today.
Find out more on Horace Mann at brainly.com/question/22814407.
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Globalization increased international contact allows diseases to spread farther and faster.
