Looking for an old song about a changed world

Tweet

Hello, I am just wondering if anyone knows any songs made in the pre-50s era or of similar style (like Ray Charles) that talks about a changed/changing/differnet world or technology or has the words "changed world" or "the world is different today" or similar in its lyrics. The reason i am asking is because i am doing a small video documentary project at uni and would like to use that as the theme music. Thank you