But it was a long time before steam navigation approached anything like these figures, and indeed, many years passed before the flatboat and the barge saw their doom, and disappeared. In 1821, ten years after the first steamboat arrived at New Orleans, there was still recorded in the annals of the town, the arrival of four hundred and forty-one flatboats, and one hundred and seventy-four barges. But two hundred and eighty-seven steamboats also tied up to the levee that year, and the end of the flatboat days was in sight. Ninety-five of the new type of vessels were in service on the Mississippi and its tributaries, and five were at Mobile making short voyages on the Mississippi Sound and out into the Gulf. They were but poor types of vessels at best. At first the shortest voyage up the river from New Orleans to Shippingport--then a famous landing, now vanished from the map--was twenty-two days, and it took ten days to come down. Within six years the models of the boats and the power of the engines had been so greatly improved that the up trip was made in twelve days, and the down in six. Even the towns on the smaller streams tributary to the great river, had their own fleets. Sixteen vessels plied between Nashville and New Orleans. The Red River, and even the Missouri, began to echo to the puffing of the exhaust and the shriek of the steam-whistle. Indeed, it was not very long before the Missouri River became as important a pathway for the troops of emigrants making for the great western plains and in time for the gold fields of California, as the Ohio had been in the opening days of the century for the pioneers bent upon opening up the Mississippi Valley. The story of the Missouri River voyage, the landing place at Westport, now transformed into the great bustling city of Kansas City, and all the attendant incidents which led up to the contest in Kansas and Nebraska, forms one of the most interesting, and not the least important chapters in the history of our national development.