Working as a diplomat has always been hard, but the further back in history you travel, the tougher it is to even travel internationally.  In spite having served during the 8th Century, Abe no Nakamaro managed to successfully manage hist post in Tang China.
Nakamaro had actually asked the Emperor 
to help the last shipwrecked emissaries
La verdad es que Nakamaro pidió
al emperador que rescatara
Nakamaro na verdade pediu ao Imperador que
ajudasse o navio emissário que havia se perdido