The first early palaeolithic tools, i.e. tools older than the Riss glacial period, were found already in the 1950s as isolated finds on the outskirts of Brno, either in the clay pits of brickworks (at the Brno–‘Červený kopec’, Brno-Židenice, ‘Malá Klajdovka’ and ‘Růženin dvůr’ localities) or in gravel terraces (Brno–Židenice, Brno–Líšeň). All these finds were worked pebbles or flakes.

The research of the Lower Pleistocene palaeontological site ‘Stránská skála’, on the eastern fringes of the City of Brno, started in the early 1960s by the Anthropos Institute of the Moravian Museum and led by R. Musil, brought to the light the first collection of artefacts accompanied by fauna. Stránská skála is a rock of Jurassic limestones, its north-western slope covered with debris, loess and fossil soils. There is a very rich fauna of vertebrata and molluscs, especially in the complex of fossil soils, but also in the loess and in the numerous crevices, fissures and caves of the rock massif. They are classed as Upper Biharian and dated to the Cromerian period (Musil and Valoch 1968). In the loess below the soil complex was also located the Matuyama/Brunhes palaeomagnetic inversion (Bucha et al. 1975).