[RedsBaron]

I don't believe that time travel will ever be possible, and if it was possible it would then be virtually impossible not to tamper with history. But if I could travel back in time.............
I'd somehow persuade my father not to leave for work exactly when he did than day in the autumn of 1974, thereby avoiding the car accident which crippled him and in the long run killed him.
I'd visit with a lot of family and friends who have passed away, and this time I would more treasure the time spent with them.
I'd not say or do the wrong thing, or fail to say or do the right thing.
As for historical events........................
As Traderumor posted, witnessing the creation of the world would be neat.
I would visit the Galilee-Jerusalem area of about 2000 years ago, first to witness the birth of Jesus, then to sit at his feet and listen to His teachings, and finally to see His resurrection.
I would witness William Wallace's victory over the English at Stirling in about 1295, and then watch Robert the Bruce secure Scottish independence with a victory near the same location in 1314 in the Battle of Bannockburn.
I would visit and re-visit events surrounding the American Revolution, including the speeches of Patrick Henry, the midnight ride of Paul Revere, the "Shot heard 'round the world," the suffering in Valley Forge, and the triumph of Yorktown with the world "turned upside down." I would dine at least once at Mount Vernon with its owner.
I would witness the debates over independence in 1776 and over ratification in 1787, then I would report on what the framers' original intent truly was.
I would suggest to Abraham Lincoln that we not go to the play In April 1865.
I would weep at the sacrifices at a thousand battlefields, from Bunker Hill to the Alamo to Omaha Beach, as I witness those battles. I would see the surprise and terror at Pearl Harbor on Dec. 7, 1941, I would fly with Doolittle's Raiders in 1942, Chuck Yeager would be my wingman in 1944-45, and I would witness the surrender ceremony on the deck of the Missouri on Sept. 2, 1945.
I would be in Dallas on Nov. 22, 1963, unless I was somehow able to persuade JFK to go anywhere else.
I would see Elvis Presley in concert in 1956 and I would see the Beatles in concert in 1964.
I would try to persuade Buddy Holly, Patsy Cline, Jim Croce and a lot of other people not to fly.
I would land with the Eagle in 1969.
I'd try to persuade Elvis Presley to take up the Atkins diet.
I'd tell Natalie Wood that her fear of dark water was entirely justified and she should stay away from the boat in the autumn of 1981.
I would be at the Berlin Wall when it fell in 1989.
Sports? I'd watch the 1869 Reds Stockings go undefeated; I'd see Ruth "call his shot" in the 1932 World Series; I would be at Crosley Field for the seventh game of the 1940 World Series; I would watch Ted Williams hit .400 with a 6 for 8 performance in the doubleheader to close the 1941 season; I'd witness Jackie Robinson's first game in 1947; I would see Bobby Thompson's HR to win the 1951 pennant; I would witness Brooklyn's game seven victory in the 1955 World Series; I would see Ted Williams homer in his final at bat in 1960; I would witness Sandy Koufax's perfect game in 1965 and his game seven shotout of the Twins a few weeks later; I would attend the Ice Bowl in Green Bay on Dec. 31, 1967; I would see Super Bowl three and the Jets win over the Colts; I would be at Fairfield Stadium when the Young Thundering Herd won the first game played after the plane crash; I would be at every postseason game played by the Big Red Machine, especially during 1975-76; I would be at the Indy 500 for Rick Mears's record tying fourth victory in 1991; and I would be telling Jim Bowden and Carl Lindner in Jan. 2000: "Yes, Junior is a great guy and a future Hall of Famer, but let's pass."