Everybody should get this one.

Still pretty easy.

Starting to get challenging now?

Some say that life starts here.

The atomic number of tin. Well done.

The number of equivalent edges on an icosidodecahedron. Impressive.

The smallest "weird number". Good work.

You can travel the world in this many days.

Degrees in a right angle. Can you make it to 180?

A Hundred was a historical county division. It's also a very impressive score.

Congratulations! You've unlocked a new achievement color!

Historically known as long hundred or great hundred.

CXXX in numerals which you're probably seeing a lot of.

The original character limit of a certain website.

Some say this is the limit on how many stable social relations a human can maintain.

The number of characters permitted in a standard SMS.

Not many number facts for this one but great work on getting so far!

180! Great score in darts, and an truly amazing score in Count to Ten.

In this year, Cleomedes taught that the moon reflects sunlight.

HTTP Status OK! This score is pretty okay too.

Another color achieved! Can you get them all?

A great frost in Britain occurs in this year lasting five months.

There are this many unique space groups for crystal symmetries.

The number of distinct solutions to the Soma cube.

Extremely impressive score! One quarter of the way towards 1000. Can you make it?

Tzolkin, the saced Mayan calendar, has this many days

Fun fact: this 3 cubed multiplied by 10

The smallest octagonal number that is half of another octagonal number.

This is an untouchable number but is it an untouchable score?

Approximate date of the magnetic compass' invention.

Another new color achieved! Keep climbing higher.

In 320BC, Theophrastus began the systematic study of botany.

Alexander the Great did quite a lot in this year BC.

Sum of the first four powers of 4. Cool.

Hypatia of Alexandria may have been born in the year 350.

The degrees of a circle which incidentally is one of the main shapes in Count to Ten.

Marcus Valerius Corvus was born in this year BC.

380 is a pronic number.

6 and a half minutes in seconds. It probably took a lot longer to get here.

The Sun is approximately 400 times bigger than the Moon but 400 times further away from Earth. Neat huh?

You've achieved another color change and a truly fantastic score.

The sum of the first twenty positive even numbers. What? Were you expecting something else here?

This is the number of primes below 3000. There's a lot of numbers.

440hz is a common standard for the A4 musical note.

If you score any higher than this, your paper might autoignite.

The sum of twelve consecutive primes! Almost as impressive as this score.

The minimum number of yards from the tee to hole on par 5.

8 minutes in seconds. 8 hours in minutes if you prefer.

The best fact I have for this number is that achieving this is extremely impressive.

Half way to 1000, your 50th achievement, and it truly is an achievement.

Another new color unlocked, you're into the deeper colors now!

This is a palindromic number in base 14.

The sum of the first three perfect numbers.

There are this many doors to Valhalla and floors in Thor's Hall

The mailbox is unavailable, but is this score?

This is a refactorable number.

This is a triangular matchstick number.

A palindromic number in base 12 and 17!

Did you know it's very difficult coming up with these descriptions? Well done on the score!

In this year, the first reference to chess is made in Persia.

In this year, paper was first imported into Japan from China. Perfect for the new blue you just got!

In this year the town of Cholula was founded in central Mexico.

Oh how far you have come...

The number of acres in a square mile.

A very admirable number.

On this year BC, the first known use of the Demotic script occurs.

You continue to impress...

Truly impressive to reach such heights!

ISO 690 is the standard for bibliographic references.

This is the perimeter of a Pythagorean triangle.

Another new color unlocked! You're getting very good at this!

A common display resolution.

King Offa of Mercia was born in this year.

This is the number of connected squarefree graphs on 9 nodes.

This is an enneagonal number.

This is the number of fixed heptominoes.

A very powerful score. 38 score + 10 to be precise.

This is the sum of four consecutive primes in a quadruplet.

This is an aspiring number, and this is certainly an aspiring high score!

This is the approximate date that the first settlers arrived on the Hawaiian Islands.

New achievement color achieved. Did you ever think you'd get this high?

This is a happy number, are you happy you reached this score?

This is the totient sum for first 52 integers.

Lots of fun properties for this one but best yet, 840 is an evil number!

This is the country calling code for North Korea.

Lots of Viking raids in this year.

Just like 860... Yep, lots of Viking raids in this year. Good score though.

The frequency of A5.

A Norse seafarer narrated the story of his travels to Alfred the Great in this year.

In this year, Constantine II became King of Scotland.

You've made it to the final color unlock! (for now?)

CMXX in Roman Numerals, pretty easy to remember really.

The year that the Althing is established in Iceland.

The totient sum for first 55 integers.

You're quite the completionist aren't you?

Country calling code for the Maldives.

A major volcano erupts in Japan in this year.

You're so close to forcing me to make new achievements...

Only 10 more until 4 digits... You can make it!

Congratulations! This is the highest achievement at launch. It is truly amazing to have reached this point.