3) CASSEOPEIA
Cassiopeia A is a supernova remnant (the structure left over when a star goes supernova, exploding in a massive kaboom like something Marvin The Martian would have built.) Though believed to have exploded approximately 300 years ago, there are no historical records of the supernova itself, but the radio transmissions from the stellar explosion were among the first such recorded, circa 1948.
The big guy of Red Trinity, Cassiopeia and his partners Anatole and Bebeck were created in the image of the then-dead Flash, Barry Allen. Later defecting from the Soviet Union, Cassiopeia and his friends became successful super-speed messengers under the name Kapitalist Kourier Service.