Today, in 1620, was founded the....

Today, in 1620, was founded the Plymouth Colony by settlers from the famous Mayflower ship. They left from Plymouth in the UK, which arms are below (without blazon)

http://www.plymouth.gov.uk/coatofarms

An alternative achievment with blazon is available here;
http://www.ngw.nl/heraldrywiki/index.php?title=Plymouth

http://www.plymouth.gov.uk/coatofarms

Plymouth City Council - Coat of arms