Architecture: 1850s-1890s. 1850s. James Buchanan, at the urging of his niece and White House hostess Harriet Lane, added a wooden greenhouse on the roof of the west terrace in 1857, adjacent to the State Dining Room. One could enter a private world of plants and flowers grown for decorating the house.
A caucus is a meeting of supporters or members of a specific political party or movement. The term originated in the United States, but has spread to Australia, Canada, New Zealand, South Africa, Brazil and Nepal.
The Origin of the Caucus. The presidential nominating convention is a modern institution. In the early days of the Republic a very different method was pursued in order to place the candidates for the highest office in the land before the people.he term caucus is frequently used to discuss the procedures used by some states to select presidential nominees such as the Iowa caucuses, the first of the modern presidential election cycle, and the Texas caucuses.