"The use of the unofficial nickname the Show-Me State has several possible origins. The phrase "I'm from Missouri" means 'I'm skeptical of the matter and not easily convinced'. This is related to the state's unofficial motto of "Show Me," whose origin is popularly ascribed to an 1899 speech by Congressman Willard Vandiver, who declared that "I come from a country that raises corn and cotton, cockleburs and Democrats, and frothy eloquence neither convinces nor satisfies me. I'm from Missouri, and you have got to show me." However, according to researchers, the phrase was in circulation earlier in the 1890s. According to another legend, the phrase was a reference to Missouri miners brought to Leadville, Colorado to take the place of striking miners and being unfamiliar with the mining methods there required frequent instruction."