Final answer:
The complete sequencing of the genomes of two bacterial species was first reported in 1995 with the sequencing of Haemophilus influenzae.
Step-by-step explanation:
The complete sequencing of the genomes of two bacterial species was first reported in 1995 when Craig Venter and colleagues at the Institute for Genomic Research completed the sequence of an entire bacterial genome called Haemophilus influenzae. This marked a significant milestone in the field of genomics and paved the way for further advancements in sequencing technology and genome research.