how was it appropriated in the nineteenth and twentieth centuries?
It is mostly used for literature and  Carnatic and Hindustani branches of classical music
Sanskrit
More than 3,000 Sanskrit works have been composed since India's independence in 1947. Much of this work has been judged of high quality, in comparison to both classical Sanskrit literature and modern literature in other Indian languages.

The Sahitya Akademi has given an award for the best creative work in Sanskrit every year since 1967. In 2009, Satya Vrat Shastri became the first Sanskrit author to win the Jnanpith Award, India's highest literary award.

Sanskrit is used extensively in the Carnatic and Hindustani branches of classical music. Kirtanas, bhajans, stotras, and shlokas of Sanskrit are popular throughout India. The samaveda uses musical notations in several of its recessions.
who is believed to be the originator of yoga Ancient India traditionally, what is the primary aim of this exercise? The ultimate goal of Yoga is "Moksha" (liberation), although the exact form this takes depends on the philosophical or theological system with which it is conjugated. can you name some texts that expound this in the classical period? Rig Veda,  Upanishad which language was the former composed in? Sanskrit when was it first written down? Between 1500 BCE and 1200 BCE
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Sanskrit [SEP] Literature and arts
More than 3,000 Sanskrit works have been composed since India's independence in 1947. Much of this work has been judged of high quality, in comparison to both classical Sanskrit literature and modern literature in other Indian languages. The Sahitya Akademi has given an award for the best creative work in Sanskrit every year since 1967. In 2009, Satya Vrat Shastri became the first Sanskrit author to win the Jnanpith Award, India's highest literary award. Sanskrit is used extensively in the Carnatic and Hindustani branches of classical music. Kirtanas, bhajans, stotras, and shlokas of Sanskrit are popular throughout India. The samaveda uses musical notations in several of its recessions.