What did Paul revere do on April 18, 1775?

Answer - Henry Wadsworth Longfellow's poem “Paul Revere's Ride” tells how a lantern was displayed in the steeple of Christ Church on the night of April 18, 1775, as a signal to Paul Revere and others. Through every Middlesex, village and farm, For the country folk to be up and to arm.

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Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.