This book, edited and published in 1995, focuses on the most significant moments of the 20th century in the fields of Arts, Communication, Science and Technology, Behavior, and Sports. During extensive research coordinated by João Baptista Breda, specialized professionals such as Décio Pignatari, Luis Eduardo Katchburian, Marta Suplicy, Jean Mary de Freitas, and Luiz Henrique Romagnoli created a panorama of the 20th century. The project was designed specifically for university students.