Where Does the #Hashtag Symbol Come From?
8:49
YouTubePBS Origins
Where Does the #Hashtag Symbol Come From?
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateORIG Subscribe to Origin of Everything! http://bit.ly/originsub What’s the #origin of the hashtag symbol? It’s gone by many names, (the pound sign, the number sign, the octothorpe and the hashtag symbol) and it’s had many ...
70.3K viewsSep 26, 2017
Related Products
ASP Tutorial
Intro to JavaScript
Excel Tutorial
#JavaScript Tutorial
JavaScript Crash Course for Beginners | Complete JS Tutorial 2026
JavaScript Crash Course for Beginners | Complete JS Tutorial 2026
YouTube2 months ago
JavaScript Full Course in 11 Hours [2025] | JavaScript Tutorial for Beginners | Edureka Live
JavaScript Full Course in 11 Hours [2025] | JavaScript Tutorial for Beginners | Edureka Live
YouTubeJul 22, 2025
Top videos
Number Systems Introduction - Decimal, Binary, Octal & Hexadecimal
10:57
Number Systems Introduction - Decimal, Binary, Octal & Hexadecimal
YouTubeThe Organic Chemistry Tutor
2.9M viewsJan 15, 2021
I Can Show Numbers In So Many Ways | Math Song for Kids | How to Represent Numbers | Jack Hartmann
3:44
I Can Show Numbers In So Many Ways | Math Song for Kids | How to Represent Numbers | Jack Hartmann
YouTubeJack Hartmann Kids Music
3.8M viewsOct 20, 2017
Negative numbers introduction | Negative numbers and absolute value | Pre-Algebra | Khan Academy
9:36
Negative numbers introduction | Negative numbers and absolute value | Pre-Algebra | Khan Academy
YouTubeKhan Academy
2.2M viewsFeb 15, 2011
JavaScript Projects
6 Hours of JavaScript Projects - From Beginner to Advanced
6:43:57
6 Hours of JavaScript Projects - From Beginner to Advanced
YouTubeTech With Tim
33.1K views11 months ago
19 Web Dev Projects – HTML, CSS, JavaScript Tutorial
12:00:19
19 Web Dev Projects – HTML, CSS, JavaScript Tutorial
YouTubefreeCodeCamp.org
143.8K views4 months ago
10 JavaScript Projects for Beginners | Learn JS by Building Real Apps | Javascript Full Course #16
1:52:43
10 JavaScript Projects for Beginners | Learn JS by Building Real Apps | Javascript Full Course #16
YouTubeCoder Army
57.2K views9 months ago
Number Systems Introduction - Decimal, Binary, Octal & Hexadecimal
10:57
Number Systems Introduction - Decimal, Binary, Octal & Hexadecimal
2.9M viewsJan 15, 2021
YouTubeThe Organic Chemistry Tutor
I Can Show Numbers In So Many Ways | Math Song for Kids | How to Represent Numbers | Jack Hartmann
3:44
I Can Show Numbers In So Many Ways | Math Song for Kids | How to Represent Numbers | Jack Hartmann
3.8M viewsOct 20, 2017
YouTubeJack Hartmann Kids Music Channel
Negative numbers introduction | Negative numbers and absolute value | Pre-Algebra | Khan Academy
9:36
Negative numbers introduction | Negative numbers and absolute value | Pre-Algebra | Khan Academy
2.2M viewsFeb 15, 2011
YouTubeKhan Academy
Let's Learn Our Numbers 0-10 | Counting Song for Kids | Jack Hartmann Writing Numbers
7:57
Let's Learn Our Numbers 0-10 | Counting Song for Kids | Jack Hartmann Writing Numbers
32.8M viewsOct 22, 2019
YouTubeJack Hartmann Kids Music Channel
Starfall® Numbers | Learn to Count | 0-10, 20 & 100!
29:16
Starfall® Numbers | Learn to Count | 0-10, 20 & 100!
3M viewsNov 3, 2023
YouTubeStarfall Education Foundation
Sign the Numbers | Learn the Numbers 1-10 in ASL for Kids | Jack Hartmann
3:07
Sign the Numbers | Learn the Numbers 1-10 in ASL for Kids | Jack Hartmann
335.3K viewsOct 31, 2023
YouTubeJack Hartmann Kids Music Channel
Learn About the Number 9 | Number of the Day: 9 | Nine with Manipulatives | Rock 'N Learn
5:33
Learn About the Number 9 | Number of the Day: 9 | Nine with Manipulatives | Rock 'N Learn
232.3K viewsDec 21, 2021
YouTubeRock 'N Learn
4:52
Spell the Numbers 0-10 | Jack Hartmann
2.6M viewsJun 8, 2022
YouTubeJack Hartmann Kids Music Channel
4:32
Three Times Table Counting Song | Numberblocks | CBeebies‌
12M viewsJul 6, 2021
YouTubeCBeebies
43:02
Number Words 1-1000 | Jack Hartmann
2.5M viewsMay 19, 2022
YouTubeJack Hartmann Kids Music Channel
3:47
The Place Value Song! | Numeral Literacy Song for Kids | Jack Hartmann
408.3K viewsMay 1, 2025
YouTubeJack Hartmann Kids Music Channel
4:16
Learn About the Number 2 | Number of the Day: 2 | Learn Three with Manipulatives | Rock 'N Learn
191.8K viewsNov 2, 2021
YouTubeRock 'N Learn
5:01
Negative symbol as opposite | Negative numbers | 6th grade | Khan Academy
263.5K viewsJan 30, 2015
YouTubeKhan Academy
37:44
38 MINUTES of FUN COUNTING SONGS! | Jack Hartmann
1.2M viewsSep 8, 2022
YouTubeJack Hartmann Kids Music Channel
24:57
Binary Addition and Subtraction With Negative Numbers, 2's Complements & Signed Magnitude
2.2M viewsNov 3, 2019
YouTubeThe Organic Chemistry Tutor
5:34
Multiplying positive and negative numbers | Pre-Algebra | Khan Academy
1.3M viewsJun 19, 2012
YouTubeKhan Academy
3:08
How to write Numbers and Symbols | handwriting is like print
177.3K viewsJul 4, 2019
YouTube書道家 東宮たくみ
13:43
How To Add and Subtract Binary Numbers | Computer Science
2.6M viewsJan 15, 2021
YouTubeThe Organic Chemistry Tutor
3:40
These Are the Teen Numbers! | Jack Hartmann
605.8K viewsJun 22, 2022
YouTubeJack Hartmann Kids Music Channel
0:37
Format numbers in cells in Microsoft Excel
354.6K viewsDec 4, 2019
YouTubeMicrosoft 365
1:59
Count to 10 With Our Friends | ASL Version | Jack Hartmann Counting Song
387K viewsMay 6, 2020
YouTubeJack Hartmann Kids Music Channel
1:10
How to add trusted phone numbers to your Apple Account | Apple Support
32.7K views4 months ago
YouTubeApple Support
0:43
House Numbers for Outside - Address Number Sign and Street Name Sign Custom House Number Sign - Metal Address Numbers for House
Jun 21, 2024
amazon
4:37
Learn About the Number 6 | Number of the Day: 6 | Learn Six with Manipulatives | Rock 'N Learn
289.2K viewsNov 16, 2021
YouTubeRock 'N Learn
4:27
Learn About the Number 5 | Number of the Day: 5 | Five with Manipulatives | Rock 'N Learn
228.5K viewsOct 5, 2021
YouTubeRock 'N Learn
5:15
Learn About the Number 8 | Number of the Day: 8 | Learn Eight with Manipulatives | Rock 'N Learn
219.9K viewsDec 7, 2021
YouTubeRock 'N Learn
6:19
How to Convert Recurring Decimals to Fractions (Proportions Part 6/6) (2026/27 exams)
422.5K viewsMay 21, 2020
YouTubeCognito
6:51
1s & 2s Complement Representation of Signed Numbers (complement representation)
696.9K viewsJun 8, 2016
YouTubeTutorialsPoint
1:07:59
Where do Mathematical Symbols Come From? - Sarah Hart
149.5K viewsMay 10, 2021
YouTubeGresham College
See more
Static thumbnail place holder
You may also want to search