STS-5
"Columbia" landed on Runway 22 at Edwards Air Force Base on 16 November 1982, at 6:33 am PST, having traveled 2 million miles in 81 orbits during a mission that lasted 5 days, 2 hours, 14 minutes and 26 seconds. "Columbia" was returned to KSC on 22 November 1982. STS-5 was the first shuttle flight in which the crew did not wear pressure suits for the launch, reentry, and landing portions of the flight, similar to the Soviet Voskhod and Soyuz missions prior to the ill-fated Soyuz 11 mission in 1971.
The shuttle was formally declared "operational" after STS-4. However, the Columbia Accident Investigation Board (CAIB), in its report on the loss with all crew aboard of "Columbia" during STS-107 in 2003, asserted that the orbiter should never have been considered operational and that, while not intrinsically unsafe, it was in fact an experimental vehicle. The CAIB's rationale was that civilian and military aircraft that are considered operational must have been tested and proven over thousands of safe flights in their final operational configurations, whereas the shuttle had conducted under 200 flights, with continuous modification. NASA operated the Space Shuttle as an experimental vehicle for the remainder of the program.
Charles Sumner
Sumner's radical theory of Reconstruction proposed that nothing beyond the confines of the Constitution restricted the Congress in determining how to treat the eleven defeated states, but that even that document had to be read in light of the Declaration of Independence, which he saw as an essential part of fundamental law. Not going as far as Thaddeus Stevens in seeing the seceded states as "conquered provinces," he nonetheless argued that by declaring secession, they had committed "felo de se" ("state suicide") and could now be turned into territories that should be prepared for statehood, under conditions set by the national government. He objected to Lincoln's and later Andrew Johnson's more lenient Reconstruction policies as ungenerous to the former slaves, inadequate in their guarantees of equal rights, and an encroachment upon the powers of Congress. When Andrew Johnson was impeached, Sumner voted for conviction. He was only sorry that he had to vote on each article of impeachment, for as he said, he would have rather voted, "Guilty of all, and infinitely more."