1737 - Born at Chashnikovo near Moscow on the 29th of June.
1757 - He was appointed instructor in Greek and rhetoric at the latter institution, and became distinguished as a pulpit orator.
1761 - He became a monk, adopting the name of Platon, and was made rector of the seminary of the monastery.
1773 - Platon remained at the Russian court, winning the admiration of even Voltaire, until the marriage of the heir apparent to Maria Feodorovna, daughter of Duke Eugene of Württemberg.
1765 - He published, for the use of his royal pupil, his Orthodox Doctrine: or, A short Compend of Christian Theology, in which the influence of Western thought, and even of rationalism, may be distinctly traced.
1768 - Platon became a member of the Holy Synod.
1770 - He was made bishop of Tver, though he still remained at St. Petersburg, finally being the religious instructor of the new grand duchess.
1775 - He was enthroned archbishop of Moscow, and throughout the reigns of Catherine II, Paul, and Alexander I diligently promoted the religious, moral, intellectual, and material welfare of his archdiocese, maintaining meanwhile an unceasing literary activity.
- He issued a catechism for the use of the clergy.
1787 - Platon reluctantly consented to become metropolitan of Moscow.
1797-1801 - Platon who crowned both Paul and Alexander I, but despite his close and cordial relations with the court he preserved to the last his firmness and his independence.
- The collected works of Platon were published at Moscow in twenty volumes, the greater portion of these writings being sermons, of which there are about 500.