picture credit to : https://semarang.bisnis.com/read/20191008/535/1156856/peringati-sumpah-pemuda-jogja-gelar-lomba-di-malioboro-mall
Many important events, historical events took place on October 28. And we must not forget history. Wise man is a man who has never forgotten his history. Spirit of monday.
In our country, October 28 is a part of most important history. History of Youth Oath Day, October 28, 1928. The Day of "SOEMPAH PEMOEDA". The song of Indonesia Raya is the national anthem of the Republic of Indonesia and was first introduced by its composer, Wage Rudolf Soepratman, on October 28, 1928 during the Second Youth Congress in Batavia (Jakarta, Now).
credit to : https://id.wikipedia.org/wiki/Museum_Radya_Pustaka
And other event in same date, is The Radya Pustaka Museum was established during the reign of Pakubuwono IX by Kanjeng Raden Adipati Sosrodiningrat IV in the Kepatihan palace on October 28, 1890. Kanjeng Raden Adipati Sosrodiningrat IV once served as Patih Pakubuwono IX and Pakubuwono X.
Then in same date too, Rechtshoogeschool te Batavia, The Law School is usually abbreviated as RH te Batavia, RH te Weltevreden, or RHS which was opened on 28 October 1924 in Batavia (now Jakarta)