There is no consensus on a date for the start of the Decline. Gibbon started his account in 98. The year 376 is taken as pivotal by many modern historians. In that year there was an unmanageable influx of Goths and other Barbarians into the Balkan provinces, and the situation of the Western Empire generally worsened thereafter, with recoveries being incomplete and temporary. Significant events include the Battle of Adrianople in 378, the death of Theodosius I in 395 (the last time the Roman Empire was politically unified), the crossing of the Rhine in 406 by Germanic tribes, the execution of Stilicho in 408, the sack of Rome in 410, the death of Constantius III in 421, the death of Aetius in 454, and the second sack of Rome in 455, with the death of Majorian in 461 marking the end of the last opportunity for recovery.