In 1995, a Netscape employee wrote a hack in 10 days that now runs the Internet
In 1995, a Netscape employee wrote a hack in 10 days that now runs the Internet
arstechnica.com
In 1995, a Netscape employee wrote a hack in 10 days that now runs the Internet

Thirty years later, JavaScript is the glue that holds the interactive web together, warts and all.
@RekallIncorporated
But really though, you have to be extremely smart to be able to design any language in 10 days.