Need helps on a level 3 lol

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The quest needs me to click to technology to advance to bronze age.

I tried to spent all my skill point economy tree by clicking on the palace on my capital city.

Quest did not complete; and I can not go into quest mode too. What do I need to do to complete this quest. Help plz?

|||You need to spend some of your tech tree points on an Age 2 technology. If you don't have any tech tree points left, just click on unspend and right click on a tech you have specced into, but don't want anymore, then spend it on any age 2/bronze age technology and the quest will complete.
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But how do I know which technology is the bronze age technology?

Thanks,

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1. Open the tech tree by clicking on your Palace in your capital city.

2. Hover over the latin number 2 at the left side of the tech tree, which looks like II.

3. You should see in the description which age the technologies are for. Everything in that "row" next to that number is Age 2 or Bronze Age.

Additional details:

Age 1 = Copper Age

Age 2 = Bronze Age

Age 3 = Silver Age

Age 4 = Golden Age