This is a personal question, which means that only you can answer it. However, I can give some examples that might help guide your work.
An example of a primary source that you might encounter in your own life is that of a news article. As this article is likely to be written by a reporter witnessing the events, it can be considered a primary source. On the other hand, an example of a secondary source would be a non-fiction book that talks about a historical event. This is because such a book would give a second-hand account of an event based on historical information.
The Mona Lisa is one of the most famous artworks in the history of art. Leonardo da Vinci was the one who painted it. Some say it was a painting of Lisa Gherardini (just learned this in my Western Civ Class). The exact date in which Da Vinci started painting this picture is unknown however it is believed that he started painting the Mona Lisa around 1503 and completed around 1517. Hopefully this helps.
In 1803, Murbury v. madison was the first supreme court case where the court asserted its authority for judicial review to strike down a law as unconstitutional. As of 2014, the united states supreme court has held 176 acts of the u.s. congress unconditional
Answer:
The Provisional Government felt it had to continue the war. ... The Government was afraid of the demands that the Germans might make if Russia asked for peace. Some such as Alexander Kerensky (Prime Minister July to October 1917) believed that a victorious war would unite the people behind the Government.
