The question has been edited to include space aliens referred to as "men". The Martians in The War of the Worlds by H. G. Wells are referred to as "men" or "men from Mars". The War of the Worlds was first serialized in Pearson's Magazine in 1897. The excerpts below are from the Project Gutenberg etext which seems to be based on the 1898 William Heinemann edition.

Book One, Chapter One, The Eve of the War:

No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man's and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinised and studied, perhaps almost as narrowly as a man with a microscope might scrutinise the transient creatures that swarm and multiply in a drop of water. With infinite complacency men went to and fro over this globe about their little affairs, serene in their assurance of their empire over matter. It is possible that the infusoria under the microscope do the same. No one gave a thought to the older worlds of space as sources of human danger, or thought of them only to dismiss the idea of life upon them as impossible or improbable. It is curious to recall some of the mental habits of those departed days. At most terrestrial men fancied there might be other men upon Mars, perhaps inferior to themselves and ready to welcome a missionary enterprise. Yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic, regarded this earth with envious eyes, and slowly and surely drew their plans against us. And early in the twentieth century came the great disillusionment.

Book One, Chapter Two, The Falling Star:

By eight o'clock a number of boys and unemployed men had already started for the common to see the "dead men from Mars." That was the form the story took. I heard of it first from my newspaper boy about a quarter to nine when I went out to get my Daily Chronicle. I was naturally startled, and lost no time in going out and across the Ottershaw bridge to the sand pits.

Book One, Chapter Seven, How I Reached Home:

"Haven't you heard of the men from Mars?" said I; "the creatures from Mars?"

The question has been edited to include space aliens referred to as "men". The Martians in The War of the Worlds by H. G. Wells are referred to as "men" or "men from Mars". The War of the Worlds was first serialized in Pearson's Magazine in 1897. The excerpts below are from the Project Gutenberg etext which seems to be based on the 1898 William Heinemann edition.

Book One, Chapter One, The Eve of the War:

No one would have believed in the last years of the nineteenth century that this world was being watched keenly and closely by intelligences greater than man's and yet as mortal as his own; that as men busied themselves about their various concerns they were scrutinised and studied, perhaps almost as narrowly as a man with a microscope might scrutinise the transient creatures that swarm and multiply in a drop of water. With infinite complacency men went to and fro over this globe about their little affairs, serene in their assurance of their empire over matter. It is possible that the infusoria under the microscope do the same. No one gave a thought to the older worlds of space as sources of human danger, or thought of them only to dismiss the idea of life upon them as impossible or improbable. It is curious to recall some of the mental habits of those departed days. At most terrestrial men fancied there might be other men upon Mars, perhaps inferior to themselves and ready to welcome a missionary enterprise. Yet across the gulf of space, minds that are to our minds as ours are to those of the beasts that perish, intellects vast and cool and unsympathetic, regarded this earth with envious eyes, and slowly and surely drew their plans against us. And early in the twentieth century came the great disillusionment.

Book One, Chapter Two, The Falling Star:

By eight o'clock a number of boys and unemployed men had already started for the common to see the "dead men from Mars." That was the form the story took. I heard of it first from my newspaper boy about a quarter to nine when I went out to get my Daily Chronicle. I was naturally startled, and lost no time in going out and across the Ottershaw bridge to the sand pits.

Book One, Chapter Seven, How I Reached Home:

"Haven't you heard of the men from Mars?" said I; "the creatures from Mars?"