ИСТИНА

We tried to reconstruct the activity of the Sun when the solar cycle was formed: although the solar luminosity was only 20% less than now, the spot area was at least 10 times more and the magnetic fields of different scales were stronger and had more complicated topology. The polarity inversion line divided many regions of strong magnetic fields. This led to the dense and hot corona. Many non-stationary phenomena occurred more often and their energy was significantly higher. The solar wind was by a factor 100 stronger. At that era, the activity of the young Sun was remarkable higher that during Grand Maxima in the end of XX century. This has important consequences on and around the Earth.