SubTrends
Other

Averages 11 posts/day, top 25% activity. Most active Tuesdays around 8 AM UTC. Mostly image posts (80%).

Posts / Day Average posts per day this month. Arrow is change vs the prior calendar month.
11 3%
Avg Upvotes Mean net upvotes per post this month (upvotes minus downvotes). Arrow is change vs the prior month.
95 6%
Avg Comments Mean number of comments per post this month. Arrow is change vs the prior month when that month’s data is available.
28 21%
Activity Rank #13,238 by posts/day among 90,883 tracked SFW subreddits as of Sep 2026 (Top 25%). Arrow is spots gained or lost vs the prior month.
#13,238 424
Top 25%
Posts w/ Links The percentage of posts that link off-site. This counts true link posts plus text posts with a URL in the body. Image and video posts are not counted.
19%
Low-Reply Rate Share of posts with 0 or 1 comment. A single comment is often an automated mod reply rather than real community discussion.
67%

r/ThisDayInHistory Traffic & Engagement

Volume and engagement over time

Posts/DayAvg Upvotes051015200100200300400Sep 1Sep 8Sep 15Sep 22Sep 29
Posts/Day Avg Upvotes Mean net upvotes per post in this bucket.

Post Format

Top Post Type Image
Typical Title Length Medium (117 chars)
Peak Day Monday

Upvote Distribution

How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.

2–9
28%
10–99
50%
100–999
19%
1K+
2%
Posts that get upvoted Share of posts that received at least one upvote (2+ net upvotes). Most posts at 1 upvote are excluded. 80%
Median upvoted post Median upvotes among posts that received upvotes. Differs from Avg Upvotes in the snapshot, which includes every post. 20
Top post Highest upvote count on a single post this month. 2.1K

r/ThisDayInHistory Most Active Times

Peak posting by day and hour (UTC)

Sun
Mon
Tue
Wed
Thu
Fri
Sat
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
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8 AM
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12 PM
1 PM
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← Swipe →
#1 Top 3 activity windows

Most Active by Day

Sun 2 AM
Mon 1 AM
Tue 8 AM
Wed 8 AM
Thu 5 AM
Fri 9 AM
Sat 3 AM

r/ThisDayInHistory Flair Performance

Upvotes and volume by flair

This subreddit doesn't use post flairs.

No flaired posts were found in this month's data.

Post Type Breakdown

Share by text, image, or link

81%image posts

r/ThisDayInHistory Trending Keywords

Ranked by how often they appear

KeywordMentions ▼UpvotesComments
september
153 (46.5%)
15248
sep
75 (22.8%)
6317
war
72 (21.9%)
403
battle
63 (19.1%)
296
world
50 (15.2%)
323
day
36 (10.9%)
7246
onthisday
33 (10.0%)
160
news
33 (10.0%)
140
history
32 (9.7%)
30
minneapolis
30 (9.1%)
150

r/ThisDayInHistory Mentioned Domains

Most linked sites

Domain Links Upvotes
youtube.com171

r/ThisDayInHistory Top Posts

Highest-performing posts

21 September 2001 17 year old Ross Parker is killed by a gang of Pakistani men who said they were "looking for a white boy to kill" in retaliation for anger over 9/11

2.1K upvotes 468 comments image Sep 21

5 September 1972. 11 members of Israel’s Olympic delegation were taken hostage by Palestinian terrorists at Munich. All 11 were killed when a German rescue attempt went catastrophically wrong. Yet after just 34 hours, the Olympic Games resumed.

1.9K upvotes 1.1K comments image Sep 5

30 September 2005. A Danish newspaper published 12 cartoons of Muhammad. Within days, the controversy had become an international crisis.

1.7K upvotes 834 comments image Sep 30

11 September 2001. This photograph of the Twin Towers was taken at about 8.30am, just 16 minutes before the North Tower was struck. The photographer had no idea he was recording the towers for the last time.

1.3K upvotes 18 comments image Sep 10

28 September 1994. The ferry Estonia sinks in the Baltic Sea, killing 852 of the 989 people aboard. The first Mayday call came at 1:22am; 28 minutes later, the ship had disappeared from radar.

1.1K upvotes 83 comments image Sep 28

8 September 1504. Michelangelo unveiled David in Florence, a 17-foot masterpiece carved from a single block of marble that had been rejected by other sculptors as flawed.

1.0K upvotes 18 comments image Sep 8

September 23 1821, the Tripolitsa Massacre occured. Overall, thousands of Jews, Islamized Greeks, Turks, Albanians and Romanis were killed.

928 upvotes 489 comments image Sep 23

TDIH

897 upvotes 605 comments image Sep 30

1995 Sep 4 - The 1995 Okinawa rape incident involved the abduction and gang rape of a 12-year-old Okinawan schoolgirl by three U.S. servicemen.

875 upvotes 162 comments image Sep 4

6 September 1997. An estimated 2.5 billion people watched Princess Diana's funeral, the largest TV audience ever recorded for a live broadcast. William was 15 and Harry just 12 when they walked behind their mother's coffin through London.

827 upvotes 145 comments image Sep 6

r/ThisDayInHistory Audience Overlap

Overlapping audiences

r/ThisDayInHistory FAQ

What's the best time to post on r/ThisDayInHistory?

Based on posting volume, r/ThisDayInHistory is most active on Tuesdays around 8 AM UTC. That window has the most community activity, but busier hours also mean more competition for attention.

How active is r/ThisDayInHistory?

r/ThisDayInHistory averages 11 posts per day and ranks in the top 25% for activity among tracked SFW subreddits.

How many upvotes do posts on r/ThisDayInHistory get?

Posts on r/ThisDayInHistory average about 95 upvotes this month (net score per post).

What kind of posts does r/ThisDayInHistory get most?

On r/ThisDayInHistory, most posts are image posts (80%)