The Author - starting his considerations from a discussion of primary legislation that took into account only an alteration in outer world (no alteration = no punishment) - gives a survey of the revolution of dispositions of law within the scope of attempt to commit an act which is illegal (i.e. anti-social act) - and this - beginning from Roman law. Particular theories are then discussed (objective and subjective attempt theories, material theory, abstractive-objective theory, formal-objective theory, material-objective, general-objective and, finally, individual-objective theories). Among recent theories the concrete-objective one and the theory of a gap in essential factors that statutorily constitute an offence are mentioned. Di...