Crucifixion was used by the Romans until about 313 AD, when Christianity became the dominant faith in Rome. However, it has been used in various places in modern times.
Details of crucifixion
Crucifixion was rarely performed for ritual or symbolic reasons.
Usually, its purpose was to provide a particularly painful, gruesome, and public death, using whatever means were most expedient for that goal. Widely different crucifixion methods varied considerably with location and time period.