I really liked the score graph back in the days of Civ I. There was only one problem: at some point (probably when the score wouldn't fit in 16 bits) it capped off and refused to show more of my exponentially growing score. This really bugged me. So when Civ II came out, I thought that surely they had fixed this problem (seeing as it would have taken 10 minutes tops). Of course they didn't, nor did they fix the 30000 gold cap, by the way. Still, Civ II was a lot of fun.
Quite a while later Civ III was about to be released. This time it was remade from scratch so there was no way it was gonna have the same problem. It didn't. Instead they chose to present the score in what is without doubt the worst way known to man. I despaired.
When Civ IV came out I didn't dare hope for improvement. And sure enough, not only did they keep the hopeless presentation, but they made it look incredibly ugly too. They did however do one thing right: they made the source code available for hacking. Seeing as I had complained to all my friends that I could've implemented a vastly superior score graph in a few hours had I only had the chance there wasn't really a choice.
So here it is: my first attempt at a proper score graph.

I spent about 4 hours total on this (including the time to learn python) so there is some room for improvement. One thing in particular I'm not too happy about is the drawing of the lines. I stole that from the foreign advisor screen where the lines do look a bit funny. It would be nice if there was another way of drawing proper lines.
[EDIT]
Latest screenshot:

Downloads:
Version 1.0 (pre v1.09)
Version 1.1 (pre v1.09)
Version 1.2
Version 1.3
Version 1.4
Version 1.5
Version 1.6
Version 1.7
Version 1.8
Change log:
v1.8
* Added instructions for installing without the research history.
* Don't show the names of leaders you haven't met (in demographics tab).
* Split the statistics table in two (one for units and one for buildings).
v1.7
* Research score graph (thanks to Bhruic).
* Show who is the best/worst rival in demographics tab.
* List which city has built a particular wonder in wonders tab. (only for completed wonders, to avoid revealing too much information)
* Fixed bugs in demographics tab where your score was displayed instead of the best/worst rival's score.
v1.6
* Displays more dates.
v1.5
* Full screen graph (moved the demographics table to a new tab).
* Added rival best/worst to demographics table.
* Sideways scrolling.
* Shows what years are being displayed.
* Improved legend layout.
v1.4
* Legend showing who is who.
v1.3
* Thicker lines.
v1.2
* Works with patch 1.09.
* The graph is no longer displayed in the background of the other tabs.
* Resets the number of turns to display to match the drop-down selection.
v1.1
* Fixed bug where the score dropped to zero at the last turn.
* Fixed bug where dead civs still got score.
Quite a while later Civ III was about to be released. This time it was remade from scratch so there was no way it was gonna have the same problem. It didn't. Instead they chose to present the score in what is without doubt the worst way known to man. I despaired.
When Civ IV came out I didn't dare hope for improvement. And sure enough, not only did they keep the hopeless presentation, but they made it look incredibly ugly too. They did however do one thing right: they made the source code available for hacking. Seeing as I had complained to all my friends that I could've implemented a vastly superior score graph in a few hours had I only had the chance there wasn't really a choice.
So here it is: my first attempt at a proper score graph.

I spent about 4 hours total on this (including the time to learn python) so there is some room for improvement. One thing in particular I'm not too happy about is the drawing of the lines. I stole that from the foreign advisor screen where the lines do look a bit funny. It would be nice if there was another way of drawing proper lines.
[EDIT]
Latest screenshot:

Downloads:
Version 1.0 (pre v1.09)
Version 1.1 (pre v1.09)
Version 1.2
Version 1.3
Version 1.4
Version 1.5
Version 1.6
Version 1.7
Version 1.8
Change log:
v1.8
* Added instructions for installing without the research history.
* Don't show the names of leaders you haven't met (in demographics tab).
* Split the statistics table in two (one for units and one for buildings).
v1.7
* Research score graph (thanks to Bhruic).
* Show who is the best/worst rival in demographics tab.
* List which city has built a particular wonder in wonders tab. (only for completed wonders, to avoid revealing too much information)
* Fixed bugs in demographics tab where your score was displayed instead of the best/worst rival's score.
v1.6
* Displays more dates.
v1.5
* Full screen graph (moved the demographics table to a new tab).
* Added rival best/worst to demographics table.
* Sideways scrolling.
* Shows what years are being displayed.
* Improved legend layout.
v1.4
* Legend showing who is who.
v1.3
* Thicker lines.
v1.2
* Works with patch 1.09.
* The graph is no longer displayed in the background of the other tabs.
* Resets the number of turns to display to match the drop-down selection.
v1.1
* Fixed bug where the score dropped to zero at the last turn.
* Fixed bug where dead civs still got score.
Comment