18. March 2020 0 By dokus4free Watch this video on YouTube Rate this video: Submit Rating Average rating / 5. Vote count: Please follow and like us:CategoryDocumentary Building ARCHES | How Did They Build That? (Engineering Documentary) | Reel Truth Science Dr. Daniel Hale Williams First Black Heart Surgeon In America | TimelineLeave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName * Email * Website Save my name, email, and website in this browser for the next time I comment.