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The earliest mentions of Slavic raids across the lower River Danube may be dated to the first half of the 6th century, yet no archaeological evidence of a Slavic settlement in the Balkans could be securely dated before c. 600 AD.
The earliest mentions of what may be dated to the first half of the 6th century?
A: Slavic raids

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In 2006, Dell acknowledged that it had problems with customer service. Issues included call transfers of more than 45% of calls and long wait times. Dell's blog detailed the response: "We're spending more than a $100 million — and a lot of blood, sweat and tears of talented people — to fix this." Later in the year, the company increased its spending on customer service to $150 million. Despite significant investment in this space, Dell continues to face public scrutiny with even the company's own website littered with complaints regarding the issue escalation process.[original research?]
What percentage of Dell support calls were transferred?
A: 45%

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The NES uses a custom-made Picture Processing Unit (PPU) developed by Ricoh. All variations of the PPU feature 2 kB of video RAM, 256 bytes of on-die "object attribute memory" (OAM) to store the positions, colors, and tile indices of up to 64 sprites on the screen, and 28 bytes of on-die palette RAM to allow selection of background and sprite colors. The console's 2 kB of onboard RAM may be used for tile maps and attributes on the NES board and 8 kB of tile pattern ROM or RAM may be included on a cartridge. The system has an available color palette of 48 colors and 6 grays. Up to 25 simultaneous colors may be used without writing new values mid-frame: a background color, four sets of three tile colors and four sets of three sprite colors. The NES palette is based on NTSC rather than RGB values. A total of 64 sprites may be displayed onscreen at a given time without reloading sprites mid-screen. The standard display resolution of the NES is 256 horizontal pixels by 240 vertical pixels.
Who developed Nintendo's PPU?
A: Ricoh

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The economy began to recover in the early 1960s, and the city experienced explosive population growth through immigration spurred by the jobs created with the implementation of major urban projects and infrastructure improvements. With the advent of democracy in Spain, the ancient kingdom of Valencia was established as a new autonomous entity, the Valencian Community, the Statute of Autonomy of 1982 designating Valencia as its capital. On the night of 23 February 1981, shortly after Antonio Tejero had stormed Congress, the Captain General of the Third Military Region, Jaime Milans del Bosch, rose up in Valencia, put tanks on the streets, declared a state of emergency and tried to convince other senior military figures to support the coup. After the televised message of King Juan Carlos I, those in the military who had not yet aligned themselves decided to remain loyal to the government, and the coup failed. Despite this lack of support, Milans del Bosch only surrendered at 5 a.m. on the next day, 24 February.
Who led a coup in Valencia?
A:
Jaime Milans del Bosch