Timeline
The Extension:ModernTimeline provides the SemanticMediaWiki result format of moderntimeline which outputs your query data into a timeline as shown below.
Timeline 
| |
|---|---|
 | |
| Image shows: | calendar timeline |
| Summary | |
| Title: | Timeline |
| Description: | Produce timelines from data |
| More | |
| Notes: | There are also the legacy 'timeline' and 'eventline' formats. |
The query
{{#ask:
<!-- [[Modification date::+]] -->
<!-- [[Modification date::>={{CURRENTYEAR}}-{{CURRENTMONTH}}-{{CURRENTDAY2}}]] -->
[[Modification date::>={{CURRENTYEAR}}-{{CURRENTMONTH}}]]
[[Has_image::+]]
|format=moderntimeline
<!-- | format=timeline
| format=eventline -->
|image property=Has_image
|?Has_image#100px;x100px;thumb
|?Modification date
|sort=Modification date
|order=asc
|start at end=on
|width=75%
|height=500px
|limit=50
|default=no recent edits
|template=Timeline
}}
results in the following
Debugging
This code works to show the thumbnail, {{#show: Svg|?Has image#100px;x100px;thumb}} so I don't know why I can't get modern timeline to show the thumbnail. I tried formatting the ask query output with a template, to no avail.
Parameters
The parser function for showing the documentation of supported functionality: {{#smwdoc: moderntimeline}}