A chronological survey of chess set design from the 7th century Afrasiab ivory pieces in Central Asia through colonial-era export sets from India and China, tracing how materials, craftsmanship, and cultural traditions shaped chess artifact design across regions and centuries.
A randomized study of US H-2B visa lotteries shows that restricting low-skill foreign workers shrinks businesses without creating American jobs. Researchers found that firms denied visas simply became smaller rather than hiring domestic workers, suggesting low-skill immigrants and American workers are poor substitutes.
A visual atlas documenting chess pieces from the 7th century to the 1900s, organized by material: ivory sets from Samarkand to Lewis Chessmen, wooden standardized designs from Selenus to Staunton and modernist interpretations, and ceramic pieces including Persian examples.