By the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tension and ultimately contributed to the failure of the union it had createdBy the 1850's the Constitution, originally framed as an instrument of national unity, had become a source of sectional discord and tensi ...