question:
The Crimean War was one of the first conflicts to use modern technologies such as explosive naval shells, railways, and telegraphs.(Preface)
What modern technologies were first used during the Crimean War?

answer: yes

question:
In 1941, he derived the exact distribution of the ratio of the mean square of successive differences to the sample variance for independent and identically normally distributed variables.
When did von NEumann establish mean square ratio?

answer: yes

question:
Amazon.com moved its headquarters from North Beacon Hill to South Lake Union and began a rapid expansion.
What large company moved its headquarters to South Lake Union in Seattle?

answer: yes

question:
In an extremely unusual event for the Middle Ages, Hunyadi's son, Matthias, was elected as King of Hungary by the nobility.
Who did the Hungarian nobility elect as King of Hungary?

answer:
yes