Russian lands 1500-1550 (Chaos)

Since 1500: The conflict between and - continues to simmer. Trade between the two Russias is often hampered, conflicts several times lead to war (although neither country is strong enough to subdue the other one). Both nations build forts and later fortresses along their common border.
~1510: Settlements in as far as Yenissei river.
1512-17: . Vladimir-Suzdal defeats the old competitor, annexes it. Many ians who miss their old freedom go to Novorossiya.
1516: Russian merchants find their way into . On their return they spread tales about Chunkvo (?????? - derived from Zhongguo), which even reach the court in Vladimir. Novorossiyan traders start to get rich on the trade with goods from China.
1518: Russians from Kiev-Chernigov who settled in the Kipchak lands east of Don have reached enough strength that they dare to stop paying taxes to the Muslim beys of the area.
1521: Novorussian (Siberian) merchant families officially are granted the right by the Grand Prince of Vladimir to trade with .
1522: A Russian ship from (at the site of OTL Archangelsk) goes around Scandinavia and finds its way to . After some confusion, the Scots find a cleric who can speak Greek to translate. This leads to the start of direct British-Russian trade.
1526: Since the interferes with British-Russian trade, the Dutch jump in, trade Russia all things they need.
1530: As stated earlier, Russian warriors in Kipchak lands expelled to Kiev-Chernigov by the .
1533-35: Russians in the former princedom of ask the Grand Prince for help against . A war breaks out, but this time, the Poles can defend their old border.
1538-40: Clash with ian troops and Mongol (and related) warriors. They ask the Grand Prince for help, which they don't get - which they won't forget.
1539: Dvoryans (Russian for "warriors" - TTL equivalent of Cossacks) in the Kipchak lands make an alliance with Kiev-Chernigov, plan a war against Muslims.
~1540: Settlements in Novorossiya at Lake Baikal.
1540-44: Kipchak lands east of the Don conquered, Russians proclaim the Dvoryan republic of .
1542: First Russian printing press (with Cyrillian letters).
1548: ; Kiev-Chernigov has to cede the county of Kursk.
~1550: Settlements in Novorossiya at Lena river.