Question: what are all the ages in history?
Answer: Bronze Age (c.3000 BCE – c.1050 BCE) ... 
Iron Age (c.1050 BCE – c.500 CE) ... 
Middle Ages (Europe, 476 – 1453) ... 
Early modern period (Europe, 1453 – 1789) ... 
Long nineteenth century (1789–1914) ... 
First, interwar Britain and Second World Wars (1914–1945)
Cold War (1945–1991)