When did Mary Shelley's first book come out?
1818
1818
1819
1818
1819
1818
1819
1818
1819
1818
1819
1818
1816
1819
1820
1818
1816
1819
1820
1818
1816
1817
1819
1820
1818
1816
1817
1819
1820
1818
1815
1816
1817
1819
1820
1818
1815
1816
1817
1819
1820
1823
1818
1815
1816
1817
1819
1820
1823
1818
1815
1816
1817
1819
1820
1823
1818
1815
1816
1817
1819
1820
1823
1818
1815
1816
1817
1819
1820
1823
1822
1809
1818
1815
1816
1817
1808
1819
1820
1823
1822
1809
1818
1825
1815
1816
1817
1819
1820
1823
1822
1809
1808
1818
1815
1816
1817
1819
1825
1820
1823
1822
1809
1818
1815
1816
1817
1808
1821
1819
1825
1820
1823
1818
1813
1815
1822
1809
1816
1817
1819
1820
1823
1808
1821
1825
1815
1816
1817
1813
1820
1823
1822
1809
1815
1816
1817
1808
1821
1825
1820
1823
1813
1824
1804
1815
1816
1817
1820
1823
1822
1809
1808
1819.
1815
1816
1817
1821
1825
1813
1820
1823
1824
1830
1804
1815
1818.
1816
1817
1820
1823
1822
1809
1808
1815
1817
1821
1825
1813
1823
1824
1830
1816.
1804
1815
1817
1819.
1823
1822
1809
1808
1815
1821
1825
1813
1824
1818.
1817.
1820s
1830
1823