Timeline June 1840

Events in June 1840 4

• 1770 – 1840 Frederick William III of Prussia (1770-1840) Died 7 June 1840, aged 69 Frederick William III was King of Prussia from 1797, leading his kingdom through the Napoleonic Wars and subsequent reforms. He joined the alliance that defeated Napoleon and later helped shape the German Confederation. He died on 7 June 1840 and was succeeded by his son, Frederick William IV.
• 1775 – 1840 Lucien Bonaparte (1775-1840) Died 29 June 1840, aged 65 Lucien Bonaparte was a French statesman and the younger brother of Napoleon Bonaparte, whose support as President of the Council of Five Hundred helped enable the 1799 coup that brought Napoleon to power. He later broke with his brother and lived largely in Italy, where he was made Prince of Canino. He died on 29 June 1840.
• 1840 Frederick William IV becomes King of Prussia Accession following his father's death Frederick William IV ascended to the Prussian throne on 7 June 1840 upon the death of his father, Frederick William III. His reign was marked by growing tensions over constitutional reform that would erupt in the 1848 revolutions. He ruled Prussia until 1861.
• 1840 Samuel Morse patents the telegraph US patent granted for electric telegraph system On 20 June 1840, Samuel Morse received a United States patent for his electric telegraph and the dot-dash code system that bore his name. The invention enabled rapid long-distance communication and was commercially deployed across the United States within a few years. It became the foundation of the 19th-century telegraph network.