Some context: The Oromo people (Oromo: Oromoo; Ge'ez: 'oromo; 'Oromo) are an ethnic group inhabiting Ethiopia and parts of Kenya and Somalia. They are the largest ethnic group in Ethiopia and the wider Horn of Africa. According to the 2007 census, they represent approximately 34.5% of Ethiopia's population, while others estimate they make up about 40% of the population. With the total Ethiopian population thought to be over 102 million, the number of Oromo people exceeds 35 million in Ethiopia alone.
Historically, Afaan Oromo-speaking people used their own Gadaa system of governance. Oromos also had a number of independent kingdoms, which they shared with the Sidama people. Among these were the Gibe region kingdoms of Gera, Gomma, Garo, Gumma, Jimma, Leeqa-Nekemte and Limmu-Ennarea.  The earliest known documented and detailed history of the Oromo people was by the Ethiopian monk Abba Bahrey who wrote Zenahu le Galla in 1593, though the synonymous term Gallas was mentioned in maps or elsewhere much earlier. After the 16th century, they are mentioned more often, such as in the records left by Abba Pawlos, Joao Bermudes, Jerorimo Lobo, Galawdewos, Sarsa Dengel and others. These records suggest that the Oromo were pastoral people in their history, who stayed together. Their animal herds began to expand rapidly and they needed more grazing lands. They began migrating, not together, but after separating. They lacked kings, and had elected leaders called luba based on a gada system of government instead. By the late 16th century, two major Oromo confederations emerged: Afre and Sadaqa, which respectively refer to four and three in their language, with Afre emerging from four older clans, and Sadaqa out of three. These Oromo confederations were originally based on southern parts of Ethiopia, but started moving north in the 16th century in what is termed as the "Great Oromo Migration".  According to Richard Pankhurst, an Ethiopia historian, this migration is linked to the first incursions into inland Horn of Africa by Imam Ahmad ibn Ibrahim. According to historian Marianne Bechhaus-Gerst, the migration was one of the consequences of fierce wars of attrition between Christian and Muslim armies in the Horn of Africa region in the 15th and 16th century which killed a lot of people and depopulated the regions near the Galla lands, but also probably a result of droughts in their traditional homelands. Further, they acquired horses and their gada system helped coordinate well equipped Oromo warriors who enabled fellow Oromos to advance and settle into newer regions starting in the 1520s. This expansion continued through the 17th century.  Both peaceful integration and violent competition between Oromos and other neighboring ethnicities such as the Amhara, Sidama, Afar and the Somali affected politics within the Oromo community. Between 1500 and 1800, there were waves of wars and struggle between highland Christians, coastal Muslim and polytheist population in the Horn of Africa. This caused major redistribution of populations. The northern, eastern and western movement of the Oromos from the south around 1535 mirrored the large-scale expansion by Somalis inland. The 1500-1800 period also saw relocation of the Amhara people, and helped influence contemporary ethnic politics in Ethiopia.  According to oral and literary evidence, Borana Oromo clan and Garre Somali clan mutually victimized each other in seventeenth and eighteenth centuries, particularly near their eastern borders. There were also periods of relative peace. According to Gunther Schlee, the Garre Somali clan replaced the Borana Oromo clan as the dominant ethnic group in this region. The Borana violence against their neighbors, states Schlee, was unusual and unlike their behavior inside their community where violence was considered deviant.
What was significant during the Pre-19th century?
A: Historically, Afaan Oromo-speaking people used their own Gadaa system of governance.
Some context: Richard Georg Strauss (11 June 1864 - 8 September 1949) was a leading German composer of the late Romantic and early modern eras. He is known for his operas, which include Der Rosenkavalier, Elektra, Die Frau ohne Schatten and Salome; his Lieder, especially his Four Last Songs; his tone poems, including Don Juan, Death and Transfiguration, Till Eulenspiegel's Merry Pranks, Also sprach Zarathustra, Ein Heldenleben, Symphonia Domestica, and An Alpine Symphony; and other instrumental works such as Metamorphosen and his Oboe Concerto. Strauss was also a prominent conductor in Western Europe and the Americas, enjoying quasi-celebrity status as his compositions became standards of orchestral and operatic repertoire.
Strauss was born on 11 June 1864 in Munich, the son of Josephine (nee Pschorr) and Franz Strauss, who was the principal horn player at the Court Opera in Munich. In his youth, he received a thorough musical education from his father. He wrote his first composition at the age of six, and continued to write music almost until his death.  During his boyhood Strauss attended orchestra rehearsals of the Munich Court Orchestra (now the Bavarian State Orchestra), where he received private instruction in music theory and orchestration from an assistant conductor. In 1872, he started receiving violin instruction at the Royal School of Music from Benno Walter, his father's cousin. In 1874, Strauss heard his first Wagner operas, Lohengrin and Tannhauser. The influence of Wagner's music on Strauss's style was to be profound, but at first his musically conservative father forbade him to study it. Indeed, in the Strauss household, the music of Richard Wagner was viewed with deep suspicion, and it was not until the age of 16 that Strauss was able to obtain a score of Tristan und Isolde. In later life, Strauss said that he deeply regretted the conservative hostility to Wagner's progressive works. Nevertheless, Strauss's father undoubtedly had a crucial influence on his son's developing taste, not least in Strauss's abiding love for the horn.  In early 1882, in Vienna, he gave the first performance of his Violin Concerto in D minor, playing a piano reduction of the orchestral part himself, with his teacher Benno Walter as soloist. The same year he entered Ludwig Maximilian University of Munich, where he studied philosophy and art history, but not music. He left a year later to go to Berlin, where he studied briefly before securing a post as assistant conductor to Hans von Bulow, who had been enormously impressed by the young composer's Serenade for wind instruments, composed when he was only 16 years of age. Strauss learned the art of conducting by observing Bulow in rehearsal. Bulow was very fond of the young man, and decided that Strauss should be his successor as conductor of the Meiningen Court Orchestra when Bulow resigned in 1885. Strauss's compositions at this time were indebted to the style of Robert Schumann or Felix Mendelssohn, true to his father's teachings. His Horn Concerto No. 1, Op. 11, is representative of this period and is a staple of the modern horn repertoire.  Strauss married soprano Pauline de Ahna on 10 September 1894. She was famous for being irascible, garrulous, eccentric and outspoken, but to all appearances the marriage was essentially happy, and she was a great source of inspiration to him. Throughout his life, from his earliest songs to the final Four Last Songs of 1948, he preferred the soprano voice to all others, and all his operas contain important soprano roles.  The Strausses had one son, Franz, in 1897. Franz married Alice von Grab-Hermannsworth, daughter of a Jewish industrialist, in a Roman Catholic ceremony in 1924. Franz and Alice had two sons, Richard and Christian.
Did he study anywhere else?
A:
He left a year later to go to Berlin, where he studied briefly