Final answer:
The famous oratory events during Abraham Lincoln's Senate campaign against Stephen Douglas in 1858 were the Lincoln-Douglas Debates, not a single speech. They focused on the issue of slavery and significantly raised Lincoln's national profile.
Step-by-step explanation:
Abraham Lincoln's Famous Speech
The name of Abraham Lincoln's famous speech during his race against Stephen Douglas for the US Senate in 1858 refers to the series of debates rather than a single speech. These were known as the Lincoln-Douglas Debates. They consisted of seven debates held throughout Illinois, where the central issue was slavery and its expansion. Although there isn't one singular speech that was named, these debates collectively became one of the most historic oratorical confrontations in American history and paved the way for Lincoln's presidency. Despite Lincoln's efforts and the soaring oratorical heights he reached during these debates, Stephen Douglas ultimately won the Senate seat. However, the national attention Lincoln gained led to his eventual presidential nomination and election.