Kievan Rus' begins with the rule (882912) of Prince Oleg, who extended his control from Novgorod south along the Dnieper river valley in order to protect trade from Khazar incursions from the east and moved his capital to the more strategic Kiev. Sviatoslav I (died 972) achieved the first major expansion of Kievan Rus' territorial control, fighting a war of conquest against the Khazar Empire. Vladimir the Great (9801015) introduced Christianity with his own baptism and, by decree, that of all the inhabitants of Kiev and beyond. Kievan Rus' reached its greatest extent under Yaroslav I (10191054); his sons assembled and issued its first written legal code, the Rus' Justice, shortly after his death.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who achieve the first major expansion of Kievan?
Ah, so.. Kiev. Sviatoslav I

On runways, green lights indicate the beginning of the runway for landing, while red lights indicate the end of the runway. Runway edge lighting consists of white lights spaced out on both sides of the runway, indicating the edge. Some airports have more complicated lighting on the runways including lights that run down the centerline of the runway and lights that help indicate the approach (an approach lighting system, or ALS). Low-traffic airports may use pilot controlled lighting to save electricity and staffing costs.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): On runways, what indicate the beginning of the runway for landing?
Ah, so.. green lights

In Britain, Willett's 1907 proposal used the term daylight saving, but by 1911 the term summer time replaced daylight saving time in draft legislation. Continental Europe uses similar phrases, such as Sommerzeit in Germany, zomertijd in Dutch-speaking regions, kesaaika in Finland, horario de verano or hora de verano in Spain and heure d'ete in France, whereas in Italy the term is ora legale, that is, legal time (legally enforced time) as opposed to "ora solare", solar time, in winter.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Which term did Willett use in his 1907 proposal to refer to DST?
Ah, so..
daylight saving