Former President Barack Obama gave his nominee acceptance speech.
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President Barack Obama announced his Clean Power Plan to take action on climate change.
US President Barack Obama received a vaccine jab against the swine flu.
The 'Don't Ask Don't Tell' policy was repealed.
Transgender people were no longer allowed to use public toilets after Obama's rule was rebuked by Donald Trump.
The FBI's most wanted man, Osama bin Laden, was killed by the US Navy Seals and CIA operatives in Abbottabad, Pakistan.
