early 12c., one of the ecclesiastical princes who constitute the sacred college (short for cardinalis ecclesiae Romanae or episcopus cardinalis), from Latin cardinalis principal, chief, essential (see cardinal (adj.)). Ecclesiastical use began for the presbyters of the chief (cardinal) churches of Rome.
In 1889, the rotary telephone dial was invented by Almon B. Strowger , a Kansas City undertaker. The first dial exchange was installed at La Porte, Indiana, in 1892. In 1943, Philadelphia was the last major area to give up dual service.
On this date 1899, John Albert Burr invented one of the first rotary-blade lawn mowers. This Black inventors Patent number is #624,749. FOR MORE INFO: www.aaregistry.org/historic_events/view/lawn-mower-invented. John Burr, LAWN MOWER: ROTARY BLADE MOWER PATENT.