This paper deals with the so-called “external history” of the origin of Critique of the power of judgment that is based primarily on the philosopher’s correspondence in the period between May 1787 and October 1789. Two letters from Kant to Reinhold (28.12.1787 and 12.05.1789) as well as modifications in the interpretation of the term “aesthetics” in the first Critique (KrVA 22, B 35-36) are crucial for the evolution of the project Critique of Taste in the book Critique of the Power (...) of Judgment. Special attention was paid to the debate between some modern scholars and editors about the importance of the reports on ‘Grundlegung’ / ‘Grundlage’ of Critique of Taste in the initial phase of work on the text. However, the available evidence does not allow us to reconstruct the “internal history” of the development of Kant’s thought during the period of writing the third Critique. Some modern scholars try to establish other objective criteria for this kind of reconstruction by identification in the text of Critique direct or hidden hints or citations to the literature of the 18th century. The author considers that the use of so-called “reflections” from the philosopher’s manuscript heritage, which can be seen as the formation and development of certain concepts of Kant’s theory, can be fruitful. The well-known problem of dating the reflections can be partially solved if terminus a quo will be not the published works, but Kant’s lectures on anthropology and logic taught at that time. (shrink)