2012 Event In the Philippines, four new species of freshwater crab are discovered; the crab are bright purple in color 1969 Event University of Arizona reports 1st optical id of pulsar (in Crab Nebula) 1902 Birthday Roy Barcroft, Howard Ravenscroft, Crab Orchard NE, actor, Freckles 1758 Event Charles Messier observes Crab Nebula and begins catalog 1056 Event Supernova Crab nebula last seen by the naked eye 1054 Event Brightest supernova (Crab Nebula) 1st reported 1054 Event Brightest known super-nova (Crab Nebula) starts shining (23 days)