US President Barack Obama received a vaccine jab against the swine flu.
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Barack Obama became the first African American to win a United States Presidential Election.
The USA's first African-American President, Barack Obama, conducted his first address.
President Barack Obama officially declared his support of same-sex marriage.
Transgender people were no longer allowed to use public toilets after Obama's rule was rebuked by Donald Trump.
Obama surprised Biden with the Presidential Medal of Freedom during a White House ceremony.
