SA Chart

-100- -75 SA is 0-500 technology
-75- -50 SA is 500-1000 technology
-50- -20 SA is 1000-1500 technology
-20-0 SA is 1500-1750 technology
0-10 SA is 1750-1850 technology
10-30 SA is 1850-1910 technology
30-40 SA is WW1 technology
40-60 SA is interwar technology
60-80 SA is WW2 technology
80-120 SA is Cold War technology
130-140 SA is 1990s technology
140-155 SA is 2000s technology
160-180 SA is 2010s technology
180-200 SA is modern technology
200-250 SA is near future technology(May set up colonies on Mars(from 215 SA) and the Moon(from 230 SA)
250-350 SA is T1 future tech
350-500 SA is T2 future tech(first man steps on Pluto at 420)
500-700 SA is T3 future tech(colonize Pluto and explore every part of the solar system)
700-800 SA is T4 future tech(development of atmospheres on other planets)
800-1000 SA is T5 future tech(develop terraforming bombs from 800 to 920 SA, make the sun and other stars equally distribute their light to planets)
1000-? SA is T6 future tech and the final stage of technology where you develop rod o’gods, conquer galaxies and etc