I think trenches had zigzag patterns because they could make people had a better aim at shot and more protection.
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Answer:
Vaudeville musical act, the Dixie Duo.
Explanation:
Eubie Blake was an American pianist and Jazz composer. He also went on to work on brodway musicals as the first black writer and director to present a complete musical in the USA. One of his most notable career points was his partnership with Noble Sissle, shortly after the first world war. They wrote some plays and created the musical act of Vaudeville, entitled as Dixie Duo, which was very popular in his time and came to stabilize Blake's name as a great African American artist.
When analyzing a source, historian has to remain unbiased and free from personal feelings and opinions. They know that there are different source of an event and they may reveal different facts which could cross-check his argument. The objective historiography is possible only when the historian is unbiased and when different sources like archaeological, literary and other sources are cross-checked and interpreted independently.
