 Across Western Europe , the Early Neolithic marked the first period in which humans built monumental structures in the landscape . These were tombs that held the physical remains of the dead , and though sometimes constructed out of timber , many were built using large stones , now known as " megaliths " . Individuals were rarely buried alone in the Early Neolithic , instead being interned in collective burials with other members of their community . The construction of these collective burial monumental tombs , both wooden and megalithic , began in continental Europe before being adopted in Britain in the first half of the fourth millennium BCE . 
 Across Western Europe , the Early Neolithic marked the first period in which humans built monumental structures in the landscape . These <a href='uninflect' title='1'><mark>were</mark></a> tombs <a href='null_relcl' title='2'><mark>that</mark></a>held the physical remains of the dead , and though sometimes constructed out of timber , many <a href='uninflect' title='3'><mark>were</mark></a> built using large stones , now known as " megaliths " . Individuals <a href='uninflect' title='4'><mark>were</mark></a> rarely buried alone in the Early Neolithic , instead being interned in collective burials with other members of their community . The construction of these collective burial monumental tombs , both wooden and megalithic , began in continental Europe before being adopted in Britain in the first half of the fourth millennium BCE . 
Across Western Europe , da Early Neolithic marked the first period in which humans built monumental structures in the landscape . dem was tombs held tdaphysical remains of the dead , and doe sometimes constructed out of timber , many was built using bigass stones , now known as " megaliths " . Individuals was rarely buried alone in the Early Neolithic , instead bein interned in collective burials wit other members of their community . Thdaonstruction of thdemollective burial monumental tombs , both wooden and megalithic , began in continental Europe before being adopted in Britain in thedarst half of the fourth millennium BCE .