The Codex Sinaiticus came to the attention of scholars in the 19th century at Saint Catherine's Monastery in the Sinai Peninsula, with further material discovered in the 20th and 21st centuries. Although parts of the codex are scattered across four libraries around the world, most of the manuscript is held today in the British Library in London, where it is on public display. Since its discovery, study of the Codex Sinaiticus has proven to be useful to scholars for critical studies of biblical text.