About 440 million years ago – the area of today’s Poznań is part of a continent called Baltica. It is located in the southern hemisphere and is slowly drifting towards the north.

350 – 330 million years ago – smaller continents collide with each other, creating a supercontinent – Pangea. The area of today’s Poznań is on the forefield of enormous mountains which were formed as a result of such a collision (today these mountains are called Sudety).

270 million years ago – the area of today’s Poznań is at the bottom of a hot and shallow sea.

250-65 million years ago – at that time Poznań finds itself at the bottom of various seas several times. The rocks formed at that time are about 100 metres below the ground level. They do not have any impact on the shape of today’s terrain.

30 million years ago – a rift valley is formed; it cuts today’s Poznań in half from north to south. The bed of the rift valley is lowered by nearly 200 metres. Brown coal and Poznań variegated clay accumulate there.

800,000 – Sven the Continental Glacier covers the area of today’s Poznań for the first time (during the South-Polish glaciation). Since then its presence freezes Polish land several times.

24,000 – 16,000 years ago – it is Sven’s last visit to the area of today’s Poznań. This exhibition will tell you more about it.