Spain took military possession in 1781, and in the Treaty of Paris (1783) both of the Floridas were ceded back to her.
For Tartaglia's discovery of the solution of cubic equations, and his contests with Antonio Marie Floridas, see Algebra (History).
It was returned to Spain the next year in exchange for the Floridas.
In July 1803 Monroe left Paris and entered upon his duties in London; and in the autumn of 1804 he proceeded to Madrid to assist Pinckney in his efforts to secure the definition of the Louisiana boundaries and the acquisition of the Floridas.
The chief events of his administration, which has been called the " era of good feeling," were the Seminole War (1817-18); the acquisition of the Floridas from Spain (1819-21); the "Missouri Compromise " (1820), by which the first conflict over slavery under the constitution was peacefully adjusted; the veto of the Cumberland Road Bill (1822) 1 on constitutional grounds; and - most 1 The Cumberland (or National) Road from Cumberland, Maryland, to Wheeling, West Virginia, was projected in 1806, by an appropriation of 1819 was extended to the Ohio River, by an act of 1825 (signed by Monroe on the last day of his term of office) was continued to Zanesville, and by an act of 1829 was extended westward from Zanesville.