Both of President Barack Obama's campaigns are known for their widespread adoption of social media and technology to reign voters in, which changed the way political campaigns are run in the 21st century.

With the start of the New Year, _{President Obama} took the opportunity to reflect on his legacy on Twitter.

"It's been the privilege of my life to serve as your President," Mr. Obama wrote Sunday. With less than three weeks left of his presidency, the soon-to-be 44th President of the United States of America shared his personal highlights in a seven-part Twitter message.

"I wanted to take a moment to look back on the remarkable progress that you made possible," Mr. Obama's first post said, gaining more than 42 thousand retweets from social media users.

The president then jumped into the economy, laying out that 15.6 million private sector jobs were added in the past 81 months. "The longest streak of job growth in our history," he said.

He defended the Affordable Care Act, a policy _{President-elect Donald Trump} and other Republican leaders have promised to repeal and replace, saying the number of Americans without health insurance has dropped significantly since his presidency. "Nearly every American now has access to financial security and affordable healthcare," he wrote.

He also touted that America cuts its reliance on foreign oil during his time in office, and put more emphasis on clean energy for the sake of the Earth's health. "We acted on a global scale to save the one planet we've got," he wrote.

Mr. Obama also told social media users that the United States continued to be a global leader, "partnering with nations to meet global problems."

And he spotlighted the historic Supreme Court ruling that same-sex couples now have the constitutional right to marry in the United States. "No union is more profound than marriage, for it embodies the highest ideals of love, fidelity, devotion, sacrifice, and family," Justice Anthony Kennedy wrote for the majority in 2015.

"We've made history in our work to reaffirm that all are created equal," Mr. Obama tweeted.