As early as 1836, ranchers in Texas began to drive cattle along a "Beef Trail" to New Orleans. In the 1840s, cattle drives expanded northward into Missouri. The towns of Sedalia, Baxter Springs, Springfield, and St. Louis became principal markets. The Shawnee Trail, also known as the Texas Road or Texas trail, played a significant role in Texas as early as the 1840s. But by 1853, as 3,000 cattle were trailed through western Missouri, local farmers blocked their passage and forced herds to turn back because the Longhorns carried ticks that carried Texas fever. Texas cattle were immune to this disease; but the ticks that they left behind infected the local cattle. By 1855 farmers in western and central Missouri formed vigilance committees, stopped some of the herds, killed any Texas cattle that entered their counties, and a law, effective in December of that year, was passed, banning diseased cattle from being brought into or through the state. Therefore, drovers took their herds up through the eastern edge of Kansas; but there, too, they met opposition from farmers, who induced their territorial legislature to pass a protective law in 1859.