1999/03: Earth X (1999) #000 s01 --- Prologue

1999/04: Earth X (1999) #001 s01 --- Chapter One

1999/06: Earth X (1999) #003 s01 --- Chapter Three

1999/08: Earth X (1999) #005 s01 --- Chapter Five

1999/10: Earth X (1999) #007 s01 --- Chapter Seven

2001/02: Universe X Special - Cap (2001) #001 s01 --- Cap