Historical milestones: Norman Conquest, penicillin discovery, and Munich Agreement

Historical records highlight several significant global events occurring on September 28 and 29. In 1066, William the Conqueror began the Norman invasion of Britain, leading to the Battle of Hastings and a permanent shift in English governance.

In the realm of science, Sir Alexander Fleming discovered penicillin in 1928 after observing antibacterial mold in his laboratory. Additionally, the 1889 General Conference on Weights and Measures in Sèvres, France, established the official definitions for the meter and the kilogram.

Political milestones include the 1938 Munich Agreement, where leaders from Germany, Italy, Great Britain, and France addressed the Sudeten crisis, and the 1829 founding of the London Metropolitan Police. In 1399, Henry IV ascended the English throne, ending the rule of the House of Anjou-Plantagenet.