July 28th

IRA Army Council Announces End to Armed Campaign. The Provisional Irish Republican Army, also known as IRA, announced an end to its armed campaign in the group's effort to free Northern Ireland from United Kingdom's rule.
Provisional Irish Republican Army
Nine Pennsylvania coal miners were rescued after 77 hours of being trapped in a mine shaft.
Quecreek Mine rescue
Tangshan Earthquake, 8.2 in magnitude kills over 240,000 in the largest loss of life by an earthquake in the 20th century.
2008 Sichuan earthquake
National Aeronautics and Space Act is passed by the US Congress. The act established the National Aeronautics and Space Administration (NASA).
National Aeronautics and Space Act
World War II: Operation Gomorrah: The British bomb Hamburg causing a firestorm that kills 42,000 German civilians.
Bombing of Hamburg in World War II
Herbert Hoover ordered Douglas MacArthur to evict the Bonus Marchers from their camps.
Bonus Army
IX Summer Olympics open. The IX Summer Olympics opened in Amsterdam
1928 Summer Olympics
Silent Parade organised by James Weldon Johnson of 10,000 African-Americans who march on 5th Ave in NYC to protest against lynching.
Silent Parade
Austria-Hungary decides against mediation and declares war on Serbia - first declaration of war of WWI.
July Crisis
The 14th Amendment to the Constitution, which established the citizenship of African Americans and guaranteed due process of law, was ratified.
Fourteenth Amendment to the United States Constitution
Peru declares independence. The Peruvian War of Independence against Spain began in 1811 and ended with a declaration of independence under the ladership of José de San Martín.
Peruvian War of Independence
French Revolution figure Robespierre & 22 other leaders of 'the Terror' guillotined to thunderous cheers in Paris.
Maximilien Robespierre
The great baroque composer Johann Sebastian Bach died.
Johann Sebastian Bach
Sir Thomas Harriot introduces potatoes to Europe on return to England.
Thomas Harriot
King Henry VIII of England's chief minister, Thomas Cromwell, was executed and Henry married his fifth wife, Catherine Howard.
Thomas Cromwell