 In the early 20th century Pavel Shatev, witnessed this process of slow differentiation, describing people who insisted on their Bulgarian nationality, but felt themselves Macedonians above all.However a similar paradox was observed at the eve of the 20th century and afterwards, when many Bulgarians from non-Macedonian descent, involved in the Macedonian affairs, espoused "Macedonian identity", and that idea undoubtedly was emancipated from the "pan-Bulgarian" national project.During the interwar period Bulgaria also supported to some extent the Macedonian "regionalism", especially in the Kingdom Yugoslavia, to prevent the final Serbianization of the local Slavs, because the very name "Macedonia" was prohibited there.