I do not know whether it makes sense there read the official Russian chronicles. There's much truth minuscule. To add an opinion about a certain event, it is better to read or interview witnesses, or those who do not depend on Russia. General information on Wikipedia.
Most of the mainstream media is biased, including those based in Russia and those from the Western nations. Do you think that Western propaganda machines such as CNN and BBC are any better than Russia Today or Sputnik News? That's why people are increasingly getting their information about the current affairs from social media.
