To begin with, a journal is a problematic source of information because it is usually the impressions of the person who writes it, and therefore they are very subjective. In the case raised, the journal is even more problematic because it is written by a citien of East Berlin in a period marked by political ideology.
To check if it is a reliable source, I would begin by trying to find out as much information as possible about the person who writes it to get an idea of his or her personal and ideological background since it will set the tone of the narration: ideology, in which area of East Berlin he or she lived, where he or she worked.
Secondly, I would look for other contrasted sources that mention this journal to know if it has already been taken into account and studied or if it has been discredited.
Then, in order to contrast the information present in the journal, I would look for specific places, dates and events reported by the writer and compare them to newspapers, periodical reports from that time or other bibliographical sources (public libraries or databases) to assess the author's rigour.
In no case would I study the journal as an isolated source without comparing it to others to interpret the information available.
Council of Trent was held in northern Italy in the town of Trento held between 1545 and 1563. It was the 19th ecumenical council of the Catholic Church.
Council of Trent addressed music in one sentence in all official documents, dealt as Holy Mass, towards the end of a 22nd session of the council.
They shall ban all kind of music from churches, in which, whether by the organ, or in the singing, there is mashed up of anything lascivious or impure, all secular actions, vain and therefore non religious or irrelevant talk, all walking about loud noise, that so the house of God may be seen to be called, a true house of prayer.
The developments made in the Compromise of 1850 was the Fugitive-Slave law and the ban on the slave trade in the nation's capital. The Fugitive-Slave law was declared for runaway and captured slaves to be returned to their respective owners.
It would be The Grange, it was during a time when consumer demand of many farm goods dropped