In the early modern period, the word theatrum (Latin for “theater,” area or work, space of action, arena) was used quite often metaphorically in book titles, for example, Theatrum mundi, et temporis (“World and Time Theater”), Theatrum politicum (“Theater of Politics”), Theatrum cometicum (“Theater of Comets”), Theatrum botanici (“Theater of Plants”), Theatrum patientiae (“Theater of Suffering”), Theatrum virtutum (“Theater of Virtues”), and others. The representatives and publishers of the Renaissance and Baroque era very quickly realized the appeal of the word “theater,” which usually meant the accumulation, systematization, and orderly sorting of inexhaustible knowledge on a subject. One of the most famous works of that time is the encyclopedia Theatrum vitae humanae (“Theater of Human Life” or “The Life of Man”) by the Swiss humanist, doctor Theodor Zwinger (1533-1588). The book presented systematical and comprehensive information about man. In this historical period, the archiving of knowledge was understood as a conscious and purposeful action.