October 6, 2014 11:47 AM EDT

Four years ago, taking pictures of brunch was weird. But on Oct. 6, 2010, everything changed.

Monday marks Instagram’s 4th birthday, and to celebrate, it’s time to take a trip down memory lane. Instagram gave TIME a time capsule that goes back to the early days of the photo-sharing app. The 13 most popular hashtags of 2010 show that while some things change (um, #iphone4?), some never will (#cat forever):

#cat
The Internet loves felines, now and forever

#iphone4
#iphone6

#snowpocalypse
Now we have polar vortexes to worry about

#sfgiants
A Silicon Valley favorite

#ivoted
About that time again

#movember
It will never end

#tgif
We’re now kind of more into #TBT

#angrybirds
Remember a time before Candy Crush?

#blackswan
This one provided a lot of Halloween costume inspiration

#madmen
The show will soon enter its final season

#lunareclipse
People love capturing natural occurrences

#thanksgiving
People continue to up their Thanksgiving Instagram game

#nofilter
With all of Instagram’s filter offerings, it’s now kind of hard to resist

Contact us at editors@time.com.

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