A visual Alcatraz timeline from 19th-century fortress to modern national park, with key dates, milestones, and photos.

Alcatraz's evolution mirrors America’s coastal defense and justice eras — a compact timeline with outsized impact.

| Period | Role | What Changed |
|---|---|---|
| 1850s–1860s | Coastal Fortress | Batteries, cannons, military garrison |
| 1860s–1906 | Mixed Use | Holding deserters and POWs alongside artillery |
| 1907–1933 | U.S. Military Prison | Expanded confinement, proto‑infrastructure for a penitentiary |
| 1934–1963 | Federal Penitentiary | Maximum security, infamous inmates, escape lore |
| 1969–1971 | Native American Occupation | Sovereignty protest; graffiti becomes testimony |
| 1972–today | National Park Unit | Preservation, tours, and layered interpretation |
Reading ruins: Alcatraz is a palimpsest — newer structures straddle older foundations.

Look for numbered site maps at the dock and interpretive signs near the Cellhouse.

Aby byl váš den na Alcatrazu snadnější, bohatší a zapamatovatelný — přímočaré tipy z opakovaných návštěv.
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