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  After the the battle of sekigahara it left tokugawa in control of the nationwide politcal confederation that Hideyoshi had forged
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  Ieyasu became the shogun to Japan's imperial court achieving hegemony over the entire country 0.html
https://www.history.com/topics/meiji-restoration - 
  
  Ieyasu expelled all Portuguese and Spanish missionaries from spreading Christianity.
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  Ieyasu prohibits Christian activity among Japanese to maintain political stability; also limiting foreign trade to Hirado and Nagasaki.
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  Hideyori’s comman19der attempts to clear out Osaka castle.Ieyasu military and ordering execution on Hideyori’s infant son.
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  The death of ieyasu however his legacy did not die his systems of rule continued for many centuries
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  balancing out the power of potentiasl hostile domains.
http://www.pbs.org/empires/japan/timeline_160