E. Prisse D’Avennes, illustrations of seating furniture from the tomb of Ramses III, Thebe, 1186 - 1155 BC. Egypt. From Histoire de l’art égyptien, 1878. Paris. Via University of Heidelberg
Notice the framework, the upholstery and the ergonomic design, the carpenters knew their job and had the tools. Chairs were quite high – for “higher people” – a stool was necessary, also serving as a table.