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Guild and player history
Discovery → Guild history / Player history
What history is
Snapshots, written when something changes rather than on a timer. See Data freshness — the sparseness is deliberate and the charts will look uneven.
Guild history
/statistics/guilds/<id> charts a guild's galactic power over time. A new row exists for every change in guild GP, so the line is dense during a growth push and flat during a quiet month.
Player history
/statistics/players/<id> does the same for one player's headline stats.
Counts
Both areas expose a count endpoint (/guilds/history/counts, /players/history/counts) that reports how many snapshots exist. It is the quickest way to tell whether a thin-looking chart means "nothing happened" or "nothing was captured".