Which statement about johannes gutenberg is true? a. he developed a new method of glassmaking that remained a closely guarded secret for centuries. b. he served as the head of the powerful weavers' guild in the german city-state of augsburg. c. he invented a printing press with moveable type and used it to make copies of the bible. d. he proposed a new educational program that became known as humanism.

The correct answer is C. He invented a printing press with moveables type and used it to make copies of the Bible.

Explanation

During the Late Middle Ages, the printing of pamphlets or texts such as the bible was carried out by means of woodcut, a technique in which it was necessary to sculpt a wooden board with the text and illustrations of the text, later ink was applied and the paper was put on that table. This technique took a lot of time and effort if it was used in the reproduction of books like the bible because printing only one page could take multiple days, on the other hand, the use of these tables did not allow the copies to be exactly the same after several uses.

For this reason, Gutenberg decided to create his own method, for this he made individual mobile types of iron using wooden molds that he later filled with iron. He also made several models of each one of the letters of the alphabet so all texts could be written harmoniously. The method developed by Gutenberg with individual mobile types made the letters had to be organized (a faster process than sculpting a complete wooden board), besides being metal, besides all copies were exactly the same, this method was called the Gutenberg Printing Press and was mainly use to create multiple copies of the Bible and other documents to allow all the population to have access to them. So, the correct answer is C. He invented a printing press with moveables type and used it to make copies of the Bible.

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they liv