Problem: From roughly 115 to 60 BC, Han forces fought the Xiongnu over control of the oasis city-states in the Tarim Basin. Han was eventually victorious and established the Protectorate of the Western Regions in 60 BC, which dealt with the region's defense and foreign affairs. The Han also expanded southward. The naval conquest of Nanyue in 111 BC expanded the Han realm into what are now modern Guangdong, Guangxi, and northern Vietnam. Yunnan was brought into the Han realm with the conquest of the Dian Kingdom in 109 BC, followed by parts of the Korean Peninsula with the colonial establishments of Xuantu Commandery and Lelang Commandery in 108 BC. In China's first known nationwide census taken in 2 AD, the population was registered as having 57,671,400 individuals in 12,366,470 households.
When was the first national census taken in China?
The answer is the following: 2 AD

Problem: Aboriginal peoples in Canada comprise the First Nations, Inuit and Metis; the descriptors "Indian" and "Eskimo" are falling into disuse, and other than in neighboring Alaska. "Eskimo" is considered derogatory in many other places because it was given by non-Inuit people and was said to mean "eater of raw meat." Hundreds of Aboriginal nations evolved trade, spiritual and social hierarchies. The Metis culture of mixed blood originated in the mid-17th century when First Nation and native Inuit married European settlers. The Inuit had more limited interaction with European settlers during that early period. Various laws, treaties, and legislation have been enacted between European immigrants and First Nations across Canada. Aboriginal Right to Self-Government provides opportunity to manage historical, cultural, political, health care and economic control aspects within first people's communities.
How many Aboriginal nations evolved trade, as well as spiritual and social hierarchies?
The answer is the following: Hundreds

Problem: The micro plug design is rated for at least 10,000 connect-disconnect cycles, which is more than the mini plug design. The micro connector is also designed to reduce the mechanical wear on the device; instead the easier-to-replace cable is designed to bear the mechanical wear of connection and disconnection. The Universal Serial Bus Micro-USB Cables and Connectors Specification details the mechanical characteristics of micro-A plugs, micro-AB receptacles (which accept both micro-A and micro-B plugs), and micro-B plugs and receptacles, along with a standard-A receptacle to micro-A plug adapter.
What is the micro connector designed for?
The answer is the following: to reduce the mechanical wear on the device

Problem: In Charleston, the African American population increased as freedmen moved from rural areas to the major city: from 17,000 in 1860 to over 27,000 in 1880. Historian Eric Foner noted that blacks were glad to be relieved of the many regulations of slavery and to operate outside of white surveillance. Among other changes, most blacks quickly left the Southern Baptist Church, setting up their own black Baptist congregations or joining new African Methodist Episcopal Church and AME Zion churches, both independent black denominations first established in the North. Freedmen "acquired dogs, guns, and liquor (all barred to them under slavery), and refused to yield the sidewalks to whites".
Black left which religious denomination is great numbers after slavery?
The answer is the following:
Southern Baptist Church