Problem: Comcast sold Comcast Cellular to SBC Communications in 1999 for $400 million, releasing them from $1.27 billion in debt. Comcast acquired Greater Philadelphia Cablevision in 1999. In March 1999, Comcast offered to buy MediaOne for $60 billion. However, MediaOne decided to accept AT&T Corporation's offer of $62 billion instead. Comcast University started in 1999 as well as Comcast Interactive Capital Group to make technology and Internet related investments taking its first investment in VeriSign.
What was Comcast's telecommunication business prior to 1999?
The answer is the following: Comcast Cellular

Problem: Seismology: To better prepare for calamities, Zhang Heng invented a seismometer in 132 CE which provided instant alert to authorities in the capital Luoyang that an earthquake had occurred in a location indicated by a specific cardinal or ordinal direction. Although no tremors could be felt in the capital when Zhang told the court that an earthquake had just occurred in the northwest, a message came soon afterwards that an earthquake had indeed struck 400 km (248 mi) to 500 km (310 mi) northwest of Luoyang (in what is now modern Gansu). Zhang called his device the 'instrument for measuring the seasonal winds and the movements of the Earth' (Houfeng didong yi 候风地动仪), so-named because he and others thought that earthquakes were most likely caused by the enormous compression of trapped air. See Zhang's seismometer for further details.
What is the Chinese name for a seismometer?
The answer is the following: Houfeng didong yi

Problem: The king returned west but is said to have lost a significant part of his baggage train along the way. Roger of Wendover provides the most graphic account of this, suggesting that the king's belongings, including the Crown Jewels, were lost as he crossed one of the tidal estuaries which empties into the Wash, being sucked in by quicksand and whirlpools. Accounts of the incident vary considerably between the various chroniclers and the exact location of the incident has never been confirmed; the losses may have involved only a few of his pack-horses. Modern historians assert that by October 1216 John faced a "stalemate", "a military situation uncompromised by defeat".
When did John face a stalemate?
The answer is the following: October 1216

Problem: The presence of companies like Shell in the Niger-Delta has led to extreme environmental issues in the Niger Delta. Many pipelines in the Niger-Delta owned by Shell are old and corroded. Shell has acknowledged its responsibility for keeping the pipelines new but has also denied responsibility for environmental causes. This has led to mass protests from the Niger-Delta inhabitants and Amnesty International against Shell and Friends of the Earth Netherlands. It has also led to action plans to boycott Shell by environmental groups, and human rights groups. In January 2013, a Dutch court rejected four out of five allegations brought against the firm over oil pollution in the Niger Delta but found a subsidiary guilty of one case of pollution, ordering compensation to be paid to a Nigerian farmer.
Environmental and human rights groups have created action plans to do what?
The answer is the following:
boycott Shell