Focus on Sanahin Cemetery: We can read the numbers on these headstones, but not the names. That's because Armenians have their own alphabet. It dates back to 405 AD when it was devised by St. Mesrop Mashtots. To give you an idea of his stature in Armenian culture, take a look at street names in Yerevan. Until 1990, the city's main thoroughfare was called Lenin Street. When that name became unsustainable, the soon-to-be-independent Republic of Armenia went back sixteen centuries to find a name worthy of enshrinement. Yerevan's main thoroughfare is now called Meshtots Street.