﻿era_1 = { #Pre-1836
	technology_cost = 5000 # for progress bonuses, use an approximate third: 1650
}

era_2 = { #1836-1861
	technology_cost = 7500 # for progress bonuses, use a third: 2500
}

era_3 = { #1862-1886
	technology_cost = 10000 # for progress bonuses, use an approximate third: 3000
}

era_4 = { #1887-1911
	technology_cost = 12500 # for progress bonuses, use an approximate third: 4000
}

era_5 = { #1911-1936
	technology_cost = 15000 # for progress bonuses, use a third: 5000
}