After game timeline

It appears that the timeline after the game is not always accurate. After one match for example it looked like it showed us both starting closer to 2 military units than 1, it then showed these lines gradually increase. This does not make any sense. In this game on Warring Islands I did not make any additional military units until feudal age. It also shows battles occurring before then when that was not the case. At the end of the game I only had 1 scout, 2 royal knights, and 1 Hulk. The timelines seems to be completely wrong.