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Second World War
The First World War (1914-1918) was a global conflict that involved the major powers of the time. It began on June 28, 1914, with the assassination of Archduke Franz Ferdinand of Austria in Sarajevo, which triggered a series of alliances and confrontations between European countries. -
Discovery of penicilin
The discovery of penicillin occurred in 1928 when Alexander Fleming observed that a Penicillium mold inhibited bacterial growth. This finding revolutionized medicine, marking the beginning of the antibiotic era and saving millions of lives.