504 Sit-In: PuzzleHistorians have to piece clues together to learn about the past. Now it's your turn! Learn all about The 504 Sit In, celebrating Disability History. Included are magnetic puzzle and backer board, clue key cards, age leveled game instructions, and a reusable canvas bag. For young historians age 5 and up, our kid's puzzle games feature: Custom puzzle piece shapes and easter eggs that double as clues, memory cues, and discussion prompts A QR code that