April 20th (1657) was a Friday. It's the 109th day of the year (110th in leap years) in the Gregorian calendar. There are 256 days left to the end of the year.
Historical Events for 20th April, 1657
» Admiral Robert Blake (admiral) called Robert Blake destroys a Spanish silver fleet under heavy fire at the Battle of Santa Cruz de Tenerife (1657) or Battle of Santa Cruz de Tenerife.
» Freedom of religion is granted to the Jews of New Amsterdam (later New York City).