While other places in the US are increasingly censuring how they tell their multicultural histories to travellers, one community is highlighting them. On a warm late-summer afternoon, just across the Potomac River from Washington DC's marble monuments, I stood with an exuberant crowd of residents, civic leaders and history enthusiasts in Arlington, Virginia. A roar of applause rang out as two small bronze markers were unveiled in the pavement in front of a modest home, their surfaces etched with names and dates. The small plaques may look unassuming, but these "stumbling stones" carry immense weight: they honour Killemacse and Con,...