The Postal Service has released a video about its Elie Wiesel stamp, the 18th release in the Distinguished Americans series.

The Holocaust survivor, author and Nobel Peace Prize recipient was a voice for victims and survivors of that event, and a human rights advocate.

The 3-minute video features Ronald Stroman, a member of the USPS Board of Governors, who narrates the video.

“He understood that silence in the face of injustice helps the oppressor — never the oppressed,” Stroman says in the video.