The nominal Imperial data of many Classic Traveller adventures is 1105 IC. The data of the assassination of the last regular Emperor of the Third Imperium is 1116 IC. Traveller RPG Wiki data for most Library Data is pegged between these dates as a default. The goal is to keep articles within that span of time, but it is near impossible to keep all articles within those limits. So articles from later perionds (…TNE, 1248, Galaxiad, etc.) or earlier periods (…Interstellar Wars, Long Night, Milieu 0, etc.) are still included. How exactly to include those off-focus chronological periods or eras have not yet been settled as of 2019 CE.