Read the excerpt from one of Professor Martin Gilbert’s 88 history books.

Question

On October 1 [1918], as the British Expeditionary Force prepared to break through the final obstacles on the Hindenburg Line, and the Americans got ready to launch a new attack on the Argonne, Ludendorff begged the Kaiser to issue a German peace offer at once.

–The First World War: A Complete History,
Professor Martin Gilbert, Oxford University, 2014

Which descriptions characterize this source? Select three options.

biased
credible
factual
outdated
secondary

Answer 1

The three descriptions that characterize this source are:

1. Credible - As a work by a respected historian, it is likely based on extensive research and reliable sources.
2. Factual - It presents specific information about historical events and actions taken by key figures during World War I.
3. Secondary - The book is a secondary source, as it analyzes and interprets primary sources and events that occurred in the past.

So the selected options are credible, factual, and secondary.