January 21, 2013 Compiled: 12:17 AM
The quiet ceremony before Monday’s public pomp, forced by a quirk of the constitutional calendar, started President Obama’s second term with a divided government at home and persistent threats abroad.
African-Americans remain overwhelmingly supportive of President Obama, but many have higher expectations for his second term.
On Sunday, Barack Obama was to become the 17th U.S. president to be inaugurated for a second time, and historians offer useful context.