World History
1536 – Spanish Found Buenos Aires
Why it matters: Marked the beginning of European settlement in present-day Argentina.
1848 – Treaty of Guadalupe Hidalgo Signed
Why it matters: Ended the Mexican–American War and reshaped North American borders.
1922 – James Joyce’s Ulysses Published
Why it matters: Revolutionized modern literature with its stream-of-consciousness technique.
U.S. History
1848 – Treaty of Guadalupe Hidalgo Ratified by the U.S.
Why it matters: Added vast western territories that would become California, Nevada, Utah, and more.
1876 – National League of Professional Baseball Clubs Formed
Why it matters: Became the foundation of Major League Baseball.
1990 – First McDonald’s Opens in Moscow
Why it matters: Symbolized the cultural and economic shifts at the end of the Cold War.