Answer:
A month after the assassination of Archduke Franz Ferdinand and his wife Sophie, on July 28, 1914,
Explanation:the Austro-Hungarian government declares war on Serbia. Immediately, and within a period of six days, European countries declare war upon one another.
I believe the right answer is B. The invention of gunpowder! Gunpowder was invented in China :)
The US. The country is divided on The belief of whether or not slavery is allowed.
The right answer for the question that is being asked and shown above is that: "D. Vietnam." By the 20th century, Japan had already begun its political and economic expansion into East Asia. In 1910, Japan annexed to D. Vietnam