At 12:38 a.m. on April 14, 1860, the steamer Antelope pulled up to the Broadway wharf. It was carrying a small, gaily bedecked bay horse and rider, who earlier that day had galloped into Sacramento — the last relay station on a transcontinental journey that had begun in St. Joseph, Mo., 10½ days, 1,950 miles and 75 ponies away.

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