<Tr> <Th> Dissolved </Th> <Td> 1854 (1854) </Td> </Tr> <Tr> <Th> Merger of </Th> <Td> Barnburner Democrats Conscience Whigs Liberty Party </Td> </Tr> <Tr> <Th> Merged into </Th> <Td> Republican Party </Td> </Tr> <Tr> <Th> Ideology </Th> <Td> Anti-slavery expansion </Td> </Tr>

The evolution of the free soil party was based on which of the following