Lamarckism is the first theory of evolution, which was proposed by Jean Baptiste de Lamarck (1744-1829), a French biologist. Although the outline of the theory was brought into notice in 1801, but his famous book Philosophie Zoologique was published in 1809, in which he discussed his theory in detail. Lamarck coined the terms invertebrates and Annelida. The term Biology was given by Lamarck and Treviranus (1802)