In London, during the Great Exhibition of 1851, the merchant George Shove designed a ladylike accessory that would allow its wearers to navigate, discreetly and easily, the fair's Hyde Park environs.

If You Go What: Arcadia Academy Where: 211 S. College St., Arcadia When: Tours are offered 11 a.m. to 3 p.m. on Friday and Saturday; Thee Abbey Kitchen is open 11 a.m. to 4 p.m. on Sunday, 11 a.m ...

The proto-mobile map! Subtle and delightful! As Harvard's John Overholt put it, the map-in-the-hand is basically "a 19th century Palm Pilot." handmap.png ...