Click the following link to download a single ZIP file that includes the Java files and WWW pages for running the program. Thereby you can use Ethno when disconnected from the Internet.
UnZip the files into an ESA directory. Then run your Java-enabled Internet browser off-line and open the file named home.html in the ESA directory. You will see the opening screen of the ESA site, now relocated within your computer, and you should be able to navigate as usual with your mouse.
© 1997, 2001, 2007, 2012 David Heise