main cause: block the destruction of a historical park Thousands of people of all ages gathered without any formal notice, just by friend to friend, neighbour

main cause: block the destruction of a historical park Thousands of people of all ages gathered without any formal notice, just by friend to friend, neighbour to neighbour; didn't allow provocation; resisted days of assault; assured the security of the park; almost all of the other big cities supported by protesting; protesters cleaned up their own mass, junks collected; I guess this is a simple description without political adds.