Educador profesional: Creador de patrones de Conductas | Desarrollo de programas conductuales
In case you didn't know, January 7th marks World Postage Stamp Day, because that day Heinrich Stephan was born, a person who organized Germany's postal system and was also the founder of the Universal Postal Union (UPU). Although today it seems like an unimportant effort, given that we have emails, social networks and instant messaging at a global level, the UPU at the time managed to standardize the international rules for the exchange of letters and packages in record... https://lnkd.in/dmzJ3b9A #WorldPostalStampDay #PostalStamp
