Problem: Database:

Codd's paper was picked up by two people at Berkeley, Eugene Wong and Michael Stonebraker. They started a project known as INGRES using funding that had already been allocated for a geographical database project and student programmers to produce code. Beginning in 1973, INGRES delivered its first test products which were generally ready for widespread use in 1979. INGRES was similar to System R in a number of ways, including the use of a "language" for data access, known as QUEL. Over time, INGRES moved to the emerging SQL standard.

Who used Codd's paper at Berkeley to improve a geographical database?
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A: Eugene Wong and Michael Stonebraker

Problem: Antibiotics:

The emergence of resistance of bacteria to antibiotics is a common phenomenon. Emergence of resistance often reflects evolutionary processes that take place during antibiotic therapy. The antibiotic treatment may select for bacterial strains with physiologically or genetically enhanced capacity to survive high doses of antibiotics. Under certain conditions, it may result in preferential growth of resistant bacteria, while growth of susceptible bacteria is inhibited by the drug. For example, antibacterial selection for strains having previously acquired antibacterial-resistance genes was demonstrated in 1943 by the LuriaDelbruck experiment. Antibiotics such as penicillin and erythromycin, which used to have a high efficacy against many bacterial species and strains, have become less effective, due to the increased resistance of many bacterial strains.

Who made the demonstration in 1943?
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A: LuriaDelbruck

Problem: Financial crisis of 2007%E2%80%9308:

Moreover, a conflict of interest between professional investment managers and their institutional clients, combined with a global glut in investment capital, led to bad investments by asset managers in over-priced credit assets. Professional investment managers generally are compensated based on the volume of client assets under management. There is, therefore, an incentive for asset managers to expand their assets under management in order to maximize their compensation. As the glut in global investment capital caused the yields on credit assets to decline, asset managers were faced with the choice of either investing in assets where returns did not reflect true credit risk or returning funds to clients. Many asset managers chose to continue to invest client funds in over-priced (under-yielding) investments, to the detriment of their clients, in order to maintain their assets under management. This choice was supported by a "plausible deniability" of the risks associated with subprime-based credit assets because the loss experience with early "vintages" of subprime loans was so low.

Who is compensated based on the volume of client assets they have under management?
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A: Professional investment managers

Problem: Estonia:

From 1228, after of the Livonian Crusade, through the 1560s, Estonia was part of Terra Mariana, established on 2 February 1207 as a principality of the Holy Roman Empire and proclaimed by Pope Innocent III in 1215 as subject to the Holy See. The southern parts of the country were conquered by Livonian Brothers of the Sword who joined the Teutonic Order in 1237 and became its branch known as the Livonian Order. The Duchy of Estonia was created out of the northern parts of the country and was a direct dominion of the King of Denmark from 1219 until 1346, when it was sold to the Teutonic Order and became part of the Ordenstaat. In 1343, the people of northern Estonia and Saaremaa rebelled against German rule in the St. George's Night Uprising, which was put down by 1345. The unsuccessful rebellion led to a consolidation of power for the Baltic German minority. For the subsequent centuries they remained the ruling elite in both cities and in the countryside.

What year did the Livonian Brothers join the Teutonic Order?
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A:
1237