Different natural sciences are teaching us what our world is like, and how it works. However it is rather difficult to comprehend how all the different scientific pieces fit together: Where our world comes from, how it was born and developed. What all stages it has gone through during its existence, how one thing has always led to another, how everything is inter-connected. And how long everything has taken.

The answers to these questions are made more understandable on the TimeTrek trail. The major events of the history of the universe and the Earth are placed in a continuum, and at distances corresponding to their age. We see how the world develops through different atmospheres and climates, and through continental movements. We see how the biosphere, for billions of years, is composed only of marine unicellular microbes –eventually, the multicellular animals emerge, and colonize also the dry land. The climate changes from very cold, totally frozen planet, to very warm tropical eras. Accordingly, the ocean levels fluctuate by more than hundred meters up and down from where it is now. Repeatedly, again and again, different catastrophes and abrupt changes wipe out most of the biosphere, in events called mass extinctions – which, although are death-calls for many species, open the possibilities for life to diversify into new species.

The TimeTrek helps us to put these big processes into a proper perspective: It is interesting to know, that out of the 4,6 billion years of the history of the Earth, animal life has existed on the dry land only for about the last five-hundred million years. Turtles, crocodiles and the first mammals have appeared on the scene some 200 million years ago. The first great apes appeared some six million years ago – the first members of the Homo genus some three million years ago, and our species, Homo sapiens, some 200 000 years ago. This corresponds to the last 20 centimeters of the trek. Our technical civilization – starting from the beginning of the agricultural food production – covers only the last one centimeter of the trek.