The great mysteries of history 12. - Visitors in ancient times

In 2014, Kossuth Publishing House published The Great Mysteries of History with great success. series of twenty volumes. The richly illustrated volumes of the new 15-volume series examine new riddles of history, greatly expanding the boundaries of time and space, from the extinction of dinosaurs to the life possibilities of recently discovered exoplanets. The reader can get acquainted with the historical background of a historical period, event or figure, the unanswered questions and the theories and assumptions arguing with each other.