Ten in no particular order that may or may not be earth-shattering
Convince Taft to accept appointment to the Supreme Court in 1902
Sneak up silently behind Gavrilo Princip and drop an ice cube down his collar about a quarter second before the otherwise-critical moment
Tip off all three major networks plus key newspapers to watch for wholesale voter fraud in Cook County, IL in the November 1960 election
Convince the Russian monarchy to embrace Catholicism instead of the Byzantine faith
Convince Henry Ford that his true life's calling is the manufacture of agricultural equipment in 1938, and that he needs to sell the automotive business to Studebaker as he planned
Prevent the formation of National City Lines by major civil / antitrust lawsuits
Have VP Charles Dawes spearhead enactment of far more stringent investment and securities trading rules in, say, 1926
Get Captain McSorley to have the helmsman of the Edmund Fitzgerald steer a few degrees more to port when passing Manitoulin Island
Persuade Hillary to start go-for-the-throat divorce proceedings against Billy in, say, 1997, if for nothing more than entertainment
Get Nixon's inner circle to realize that going after the DNC headquarters won't gain a damn thing of practical value and that the election is essentially in the bag as it is
Convince Taft to accept appointment to the Supreme Court in 1902
Sneak up silently behind Gavrilo Princip and drop an ice cube down his collar about a quarter second before the otherwise-critical moment
Tip off all three major networks plus key newspapers to watch for wholesale voter fraud in Cook County, IL in the November 1960 election
Convince the Russian monarchy to embrace Catholicism instead of the Byzantine faith
Convince Henry Ford that his true life's calling is the manufacture of agricultural equipment in 1938, and that he needs to sell the automotive business to Studebaker as he planned
Prevent the formation of National City Lines by major civil / antitrust lawsuits
Have VP Charles Dawes spearhead enactment of far more stringent investment and securities trading rules in, say, 1926
Get Captain McSorley to have the helmsman of the Edmund Fitzgerald steer a few degrees more to port when passing Manitoulin Island
Persuade Hillary to start go-for-the-throat divorce proceedings against Billy in, say, 1997, if for nothing more than entertainment
Get Nixon's inner circle to realize that going after the DNC headquarters won't gain a damn thing of practical value and that the election is essentially in the bag as it is