Below is my article about Hollywood's depiction about the westward migration via wagon trains in 19th century United States, as shown in "Manifest Destiny", the second episode of the 2005 television miniseries, "INTO THE WEST" :
"WESTWARD HO!": "INTO THE WEST" (2005)
Steven Spielberg had served as executive producer for a miniseries about the history of the Old West, during a period that spanned from the mid-1820s to 1890-91. If this premise sounds familiar, it should. It bears a strong resemblance to the main plot for "HOW THE WEST WAS WON". Only the story for "INTO THE WEST"...