Barack Obama on social media

U.S. President Donald Trump met with Twitter Inc Chief Executive Jack Dorsey on April 23 and spent a significant time questioning him about why he had lost some Twitter followers, a person briefed on the matter said.

According to a tweet posted by Washington Post reporter Juliet Eilperin, the Greek PM Alexis Tsipras challenged US President Barack Obama to a one on one basketball match. The tweet read: “A cultural exchange? @POTUS will tour the Parthenon-but Greek PM Tsipras plans to ask him to play basketball, a top Greek official tells me”

Twitter, which turns 10 years old on March 21, has grown into one of the leading global social networks. Here are some key facts about the messaging platform:          

Twitter came to life on March 21, 2006, when co-founder Jack Dorsey sent out the first tweet: "just setting up my twttr." Dorsey followed up with the first "human-generated" tweet: "inviting coworkers."  

On Friday, Barack Obama was photograph signing new legislation, but… he was not wearing his wedding band. In fact, he was not wearing his wedding ring throughout the entire weekend. Noticeably missing, the missing band set forth a flood of speculation.

US President Barack Obama launched on Monday his first Twitter account that is not run by staff members.

"Dad, husband, and 44th President of the United States" is how he describes himself.

Obama has had only three tweets as of Tuesday 11:00 EEST, in about 16 hours of using the social network on what he claims is a personal basis.