Kievan Rus' begins with the rule (882–912) 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 (980–1015) 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 (1019–1054); his sons assembled and issued its first written legal code, the Rus' Justice, shortly after his death. 

The term "Kievan Rus'" (Ки́евская Русь Kievskaya Rus’) was coined in the 19th century in Russian historiography to refer to the period when the centre was in Kiev. In English, the term was introduced in the early 20th century, when it was found in the 1913 English translation of Vasily Klyuchevsky's A History of Russia, to distinguish the early polity from successor states, which were also named Rus. Later, the Russian term was rendered into Belarusian and Ukrainian as Кіеўская Русь Kijeŭskaja Rus’ and Ки́ївська Русь Kyivs'ka Rus’, respectively.
When did Kievan Rus' began?
by whom?
When did they change their religion?
who was the leader?
how did he do it?
What was Prince Oleg trying to protect?
When did the name start being used?
why?
Why was it moved there
how did they have their first major expansion
What was issued?
by whom?
what else was he known for?
who did they fight against?
882
Kievan Rus' begins with the rule (882–912) of Prince Oleg
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unknown
Sometime between 980–1015
. Vladimir the Great (980–1015) introduced Christianity with his own baptism and, by decree, that of all the inhabitants of Kiev and beyond.
Vladimir the Great
Vladimir the Great (980–1015) introduced Christianity with his own baptism
with his own baptism
Vladimir the Great (980–1015) introduced Christianity with his own baptism 
trade
 to protect trade from Khazar incursions from the east
19th century
The term "Kievan Rus'" (Ки́евская Русь Kievskaya Rus’) was coined in the 19th century
to refer to the period when the centre was in Kiev
The term "Kievan Rus'" (Ки́евская Русь Kievskaya Rus’) was coined in the 19th century in Russian historiography to refer to the period when the centre was in Kiev
unknown
unknown
war
Sviatoslav I (died 972) achieved the first major expansion of Kievan Rus' territorial control, fighting a war of conquest against the Khazar Empire. 
legal code
 his sons assembled and issued its first written legal code
Yaroslav I's sons
Yaroslav I (1019–1054); his sons assembled and issued its first written legal code,
Kievan Rus' reaching its greatest extent
Kievan Rus' reached its greatest extent under Yaroslav I 
unknown
unknown