From Wikipedia: “World Sanskrit Day, also known as Vishvasamskritadinam (Sanskrit: विश्वसंस्कृतदिनम्, romanized: Viśvasaṃskṛtadinam), is an annual event focused around the ancient Indian language of Sanskrit that incorporates lectures about the language and is aimed to promote its revival and maintenance. It is celebrated on Shraavanapoornima, that is the Poornima day of the Shraavana month in the Hindu calendar. The Sanskrit organisation Samskrita Bharati is involved in promoting the day. In the year 2020, this day is celebrated on August 3.”
-TIN Bureau