Present-day Mali was once part of three West African empires that controlled trans-Saharan trade: the Ghana Empire, the Mali Empire (for which Mali is named), and the Songhai Empire. During its golden age, there was a flourishing of mathematics, astronomy, literature, and art. At its peak in 1300, the Mali Empire covered an area about twice the size of modern-day France and stretched to the west coast of Africa. In the late 19th century, during the Scramble for Africa, France seized control of Mali, making it a part of French Sudan. French Sudan (then known as the Sudanese Republic) joined with Senegal in 1959, achieving independence in 1960 as the Mali Federation. Shortly thereafter, following Senegal's withdrawal from the federation, the Sudanese Republic declared itself the independent Republic of Mali. After a long period of one-party rule, a coup in 1991 led to the writing of a new constitution and the establishment of Mali as a democratic, multi-party state.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What year did Mali gain independence as the Mali Federation?
Ah, so.. 1960

The dry lands of Namibia were inhabited since early times by San, Damara, Nama and, since about the 14th century AD, by immigrating Bantu who came with the Bantu expansion from central Africa. From the late 18th century onwards, Orlam clans from the Cape Colony crossed the Orange River and moved into the area that today is southern Namibia. Their encounters with the nomadic Nama tribes were largely peaceful. The missionaries accompanying the Orlams were well received by them, the right to use waterholes and grazing was granted against an annual payment. On their way further northwards, however, the Orlams encountered clans of the Herero tribe at Windhoek, Gobabis, and Okahandja which were less accommodating. The Nama-Herero War broke out in 1880, with hostilities ebbing only when Imperial Germany deployed troops to the contested places and cemented the status quo between Nama, Orlams, and Herero.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What type of people were the Herero tribe?
Ah, so.. unanswerable

Nanjing has been the educational centre in southern China for more than 1700 years. There are 75 institutions of higher learning till 2013. The number of National key laboratories, National key disciplines and the academicians of Chinese Academy of Sciences and Chinese Academy of Engineering all rank third in the nation. It boasts some of the most prominent educational institutions in the region, some of which are listed as follows:
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is Nanjing's nationwide ranking for National key laboratories?
Ah, so..
third