project nrf51822 with BLE mesh with issue for newbie

[Trần]

I am newbie in nrf51822 and I am going to do project nrf51822 with BLE mesh. I have some questions regarding to this, please support me:
Does Nrf51822 support BLE Mesh?
Does nordic have BLE Mesh sample for nrf51822?
Is there Library or API of BLE for nrf51

[Turbo J]

Trần said:

Does Nrf51822 support BLE Mesh?

Nope: "nRF51 is no longer officially supported."

[Trần]

So now, which device is officially supported from Nordic? 
thank for your answer lots