Philadelphia History Tour — Versions | Marlvel

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v1.8iOS
Jan 31, 2026
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Minor coding updates
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v1.7iOS
Jul 31, 2021
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Small formatting improvements
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v1.6iOS
May 21, 2021
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Small formatting improvements
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v1.5iOS

Jan 29, 2021

Minor enhancements to the map and photos.

v1.4iOS

Jan 20, 2021

Minor formatting and audio enhancements.

v1.3iOS
Sep 24, 2020
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Small changes to the text and photos.
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v1.2iOS
Jul 31, 2020
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A few new photos and site updates.
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v1.1iOS

Jun 19, 2020

A few new photos, and minor formatting updates.