Period_number,Period,Sub_period,Start_date,End_date
1,Neolithic,Early Neolithic,-4000,-3301
2,Neolithic,Middle Neolithic,-3300,-2901
3,Neolithic,Late Neolithic,-2900,-2451
4,Bronze Age,Beaker/Chalcolithic,-2450,-2201
5,Bronze Age,Early Bronze Age,-2200,-1501
6,Bronze Age,Middle Bronze Age,-1500,-1150
7,Bronze Age,Late Bronze Age,-1150,-801
8,Iron Age,Early Iron Age,-800,-401
9,Iron Age,Middle Iron Age,-400,-101
10,Iron Age,Late Iron Age,-100,42
11,Prehistoric,n/a,-4000,42
12,Neolithic,n/a,-4000,-2451
13,Bronze Age,n/a,-2450,-801
14,Iron Age,n/a,-800,42
15,Unclear/Unspecified; Unknown; Multiperiod,n/a,-100000,2000
16,Bronze Age/Iron Age,n/a,-2450,42
17,Neolithic/Bronze Age,n/a,-4000,-801