Here's why:
* Hymn: The poem is written in a style typical of hymns, with a simple, direct, and often religious tone. It also uses imagery related to the events of the Revolutionary War, which many saw as a battle for liberty and freedom, akin to a religious struggle.
* Lyric Poem: It focuses on expressing emotions and personal reflections. While the poem is about a historical event, Emerson's own thoughts and feelings about the significance of the battle are evident throughout.
Therefore, the "Concord Hymn" is a poem that can be categorized as both a hymn and a lyric poem, combining religious and personal elements.