Mark Ridley-Thomas (Paresh Dave/Neon Tommy)

As L.A. County Supervisor Mark Ridley Thomas takes the oath of office on Friday for a second term, he also becomes the first African-American man to be chairman of the Los Angeles County Board of Supervisors.

According to The Los Angeles Wave, the swearing-in ceremony held in Willowbrook is set to showcase some of Thomas' most notable achievements from his first term in office, including:

• The completion of the new Martin Luther King Jr. Center for Public Health, more than $5.7 billion of existing or planned investments in new libraries, community centers, parks, community gardens, medical and transportation infrastructure, as well as tens of thousands of jobs created thanks to his advocacy on local worker hiring policies for major county transportation and construction projects.

Find more Neon Tommy coverage on Mark Ridley-Thomas here.

Reach Executive Producer Paige Brettingen here. Follow her here.