Which innovative product design feature did ancient Egyptian furniture makers pioneer that is still widely used in high-end furniture today?

The ancient Egyptians were master craftsmen who created products that have lasted millennia. Their advanced understanding of materials, aesthetics, and functionality led to product designs that continue to influence modern design principles. From cosmetics to furniture, their innovative approaches to product development solved everyday problems while incorporating cultural symbolism. Test your knowledge about one of history's most influential product design civilizations!

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Veneering - applying thin decorative wood layers over cheaper wood structures
Spring-loaded mechanisms for reclining chairs
Glass inlays for tabletops
Hydraulic height adjustment for desks and tables