"Database of and index to 5000+ full text, audio and video versions of public speeches, sermons, legal proceedings, lectures, debates, interviews, other recorded media events, and a declaration or two."
"Busse Library provides this website as a resource for students and faculty seeking the locations of famous American speeches. For each speech, this listing offers full-text content, audio/video websites, and and photos of the speaker or event."
The majority of speeches are by Americans but here are a few international historical speeches included. Each entry begins with a short explanation, full text of the speech and audio version when available.
"The Scripps Library, through cooperation with various presidential libraries, has been collecting some of the most important presidential speeches in American history. These speeches all have transcripts, and some are available in their entirety in audio or video."