Why is the the letter “x” the unknown

Absolutely fascinated why “x” is the unknown. It’s comes from Arabic via Spanish.

Less then four minutes.

Greg is the Co-Founder of Packet Pushers Interactive LLC, speaker,co-host of the Packet Pushers Podcast and analyst.

I'm a recovering Network Architect/Engineer who survived 25 years of Corporate IT . You can hire me for contract work, freelance or ad hoc work by the hour.

Packet Pushers is the largest weekly data networking podcast in the world delivering 500K downloads per month.

I'm also professional writer, presenter, speaker and author.

My technical site is EtherealMind.com. Sometimes I speak at events.