1801. Johann Christian Ackermann, a celebrated German physician and bibliographer, died, aged 45.
1810. London rendered impassable for several hours by a heavy rain.
1811. Battle of Pombal, in Portugal, in which the French were defeated with the loss of 470, by the British.
1812. John Henry's plot to dismember the Union disclosed to congress. Henry
received $50,000 public money for disclosing it, and sailed immediately for France.
1814. Battle of Laon, in which Napoleon was defeated by Marshal Blucher.
1822. Edward Daniel Clarke, professor of mineralogy at Cambridge and a celebrated traveler and tourist, died.
1823. John Henry Van Swinden, a Dutch philosopher, died. He was an author on various subjects, and a man of great erudition.
1825. Anna Letitia Barbauld, an English authoress of great reputation in her day, died. She was early taught the languages, and became distinguished for her learning. She retained great vigor of mind and body to the extreme age of 90.
1834. Snow fell at Rome, the first event of the kind on record in 240 years. (See [March 25, 1595].)