In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
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Question: The eighth season of The Walking Dead, an American post-apocalyptic horror television series on AMC, premiered on October 22, 2017, and will consist of 16 episodes split into two eight-episode parts, with the second part debuting on February 25, 2018.

Answer: how many episodes are there of walking dead season 8

Question: At the time of the Declaration of Independence in July 1776, the Continental Congress would not legally adopt flags with 'stars, white in a blue field' for another year. The flag contemporaneously known as 'the Continental Colors' has historically been referred to as the first national flag.

Answer: how many stars did the american flag start with

Question: Gutenberg in 1439 was the first European to use movable type. Among his many contributions to printing are: the invention of a process for mass-producing movable type; the use of oil-based ink for printing books; adjustable molds; mechanical movable type; and the use of a wooden printing press similar to the agricultural screw presses of the period. His truly epochal invention was the combination of these elements into a practical system that allowed the mass production of printed books and was economically viable for printers and readers alike. Gutenberg's method for making type is traditionally considered to have included a type metal alloy and a hand mould for casting type. The alloy was a mixture of lead, tin, and antimony that melted at a relatively low temperature for faster and more economical casting, cast well, and created a durable type.

Answer:
who developed the first printing press in 1430