Today is the Sunday of Orthodoxy, the first Sunday in Orthodox Great Lent, which commemorates the Triumph of Orthodoxy and the restoration of the icons in 843 after the second period of Iconoclasm:

The Uncircumscribable Word of the Father was circumscribed when He took flesh of thee, O Theotokos; and when He had restored the defiled image to its ancient state, He suffused it with divine beauty. As for us, confessing our salvation, we record it in deed and word. ~Kontakion of the First Sunday of Great Lent