<Table> Leaves of Grass <Tr> <Td_colspan="2"> Walt Whitman, age 35, frontispiece to Leaves of Grass . Steel engraving by Samuel Hollyer from a lost daguerreotype by Gabriel Harrison </Td> </Tr> <Tr> <Th> Author </Th> <Td> Walt Whitman </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr> <Tr> <Th> Language </Th> <Td> English </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Poetry </Td> </Tr> <Tr> <Th> Publisher </Th> <Td> Self </Td> </Tr> <Tr> <Th> Publication date </Th> <Td> July 4, 1855 </Td> </Tr> </Table> <Tr> <Td_colspan="2"> Walt Whitman, age 35, frontispiece to Leaves of Grass . Steel engraving by Samuel Hollyer from a lost daguerreotype by Gabriel Harrison </Td> </Tr> <Tr> <Th> Author </Th> <Td> Walt Whitman </Td> </Tr> <Tr> <Th> Country </Th> <Td> United States </Td> </Tr>

What were some of the experiences that helped shape whitman's leaves of grass