Problem: Please answer a question about the following article about Copper:
Britain's first use of brass occurred around the 3rd–2nd century BC. In North America, copper mining began with marginal workings by Native Americans. Native copper is known to have been extracted from sites on Isle Royale with primitive stone tools between 800 and 1600. Copper metallurgy was flourishing in South America, particularly in Peru around 1000 AD; it proceeded at a much slower rate on other continents. Copper burial ornamentals from the 15th century have been uncovered, but the metal's commercial production did not start until the early 20th century.
When did commercial production of copper begin?
A: early 20th century


Question: Read this and answer the question

Since the middle of the 19th century, Masonic historians have sought the origins of the movement in a series of similar documents known as the Old Charges, dating from the Regius Poem in about 1425 to the beginning of the 18th century. Alluding to the membership of a lodge of operative masons, they relate a mythologised history of the craft, the duties of its grades, and the manner in which oaths of fidelity are to be taken on joining. The fifteenth century also sees the first evidence of ceremonial regalia.

What kind of an oath do Masons take when they join?
Answer: fidelity


Problem: The inhabitants of the British Isles have been drinking ale since the Bronze Age, but it was with the arrival of the Roman Empire in its shores in the 1st Century, and the construction of the Roman road networks that the first inns, called tabernae, in which travellers could obtain refreshment began to appear. After the departure of Roman authority in the 5th Century and the fall of the Romano-British kingdoms, the Anglo-Saxons established alehouses that grew out of domestic dwellings, the Anglo-Saxon alewife would put a green bush up on a pole to let people know her brew was ready. These alehouses quickly evolved into meeting houses for the folk to socially congregate, gossip and arrange mutual help within their communities. Herein lies the origin of the modern public house, or "Pub" as it is colloquially called in England. They rapidly spread across the Kingdom, becoming so commonplace that in 965 King Edgar decreed that there should be no more than one alehouse per village.
What was the Latin term for the Roman inns?
The answer is the following: tabernae


Sonam Gyatso, after being granted the grandiose title by Altan Khan, departed for Tibet. Before he left, he sent a letter and gifts to the Ming Chinese official Zhang Juzheng (1525–1582), which arrived on March 12, 1579. Sometime in August or September of that year, Sonam Gyatso's representative stationed with Altan Khan received a return letter and gift from the Wanli Emperor (r. 1572–1620), who also conferred upon Sonam Gyatso a title; this was the first official contact between a Dalai Lama and a government of China. However, Laird states that when Wanli invited him to Beijing, the Dalai Lama declined the offer due to a prior commitment, even though he was only 400 km (250 mi) from Beijing. Laird adds that "the power of the Ming emperor did not reach very far at the time." Although not recorded in any official Chinese records, Sonam Gyatso's biography states that Wanli again conferred titles on Sonam Gyatso in 1588, and invited him to Beijing for a second time, but Sonam Gyatso was unable to visit China as he died the same year in Mongolia working with Altan Khan's son to further the spread of Buddhism.
Who was the Ming Chinese official?
Zhang Juzheng


Input: Planck constant
Classical statistical mechanics requires the existence of h (but does not define its value). Eventually, following upon Planck's discovery, it was recognized that physical action cannot take on an arbitrary value. Instead, it must be some multiple of a very small quantity, the "quantum of action", now called the Planck constant. Classical physics cannot explain this fact. In many cases, such as for monochromatic light or for atoms, this quantum of action also implies that only certain energy levels are allowed, and values in between are forbidden.

What is the "quantum of action" called?
Output: the Planck constant


Problem: Please answer a question about the following article about Dutch Republic:
The free trade spirit of the time received a strong augmentation through the development of a modern, effective stock market in the Low Countries. The Netherlands has the oldest stock exchange in the world, founded in 1602 by the Dutch East India Company. While Rotterdam has the oldest bourse in the Netherlands, the world's first stock exchange – that of the Dutch East-India Company – went public in six different cities. Later, a court ruled that the company had to reside legally in a single city, so Amsterdam is recognized as the oldest such institution based on modern trading principles. While the banking system evolved in the Low Countries, it was quickly incorporated by the well-connected English, stimulating English economic output.
When was the stock exchange founded in the Netherlands?
A:
1602