Quick history fact: the first .com domain ever registered was symbolics.com, on 15 March 1985. Symbolics was a computer company that made Lisp machines. For years only a small number of companies bothered with .com domains, it was mostly universities and research places on the ntework.
the domain was later sold and is still around as a historical site. it's wild to think how few domains existed back then compared to now. the whole idea of a business having a wbesite was decades away.
