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|this breakthrough in physics in the early 20th century, used today by electronic technology: there is an underlying uncertainty in subatomic particles, such that they have probabilities of being in different places at the same time until they are observed

|this breakthrough in physics in the early 20th century, used today by electronic technology: there is an underlying uncertainty in subatomic particles, such that they have probabilities of being in different places at the same time until they are observed

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|First Battle of Marne

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|From September 6-12, 1914, the First Battle of Marne was a key conflict which halted the German efforts to capture France. This forced the Germans to fight a two front war. The French losses were horrific, 250,000. The German losses were similar.

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|The Battle of Gallipoli

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|Allied forces landed on the Turkish peninsula of Gallipoli in April 1915. The allies were not prepared for the terrain or there opponent. Nine months after the landing the allies had to retreat. They suffered 46,000 deaths among 250,000 casualties.

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