A few past anniversary blog posts:
2008: https://daniel.haxx.se/blog/2008/03/20/curl-ten-years-today/
2011: https://daniel.haxx.se/blog/2011/03/20/curlyears-plus-equals-one/
2015: https://daniel.haxx.se/blog/2015/03/20/curl-17-years-old-today/
2018: https://daniel.haxx.se/blog/2018/03/20/twenty-years-1998-2018/
2022: https://daniel.haxx.se/blog/2022/03/20/curl-is-now-24/
2023: https://daniel.haxx.se/blog/2023/03/20/twenty-five-years-of-curl/
daniel.haxx.securl ten years today | daniel.haxx.se
دانیال بهزادی 
@bagder curl is older than me
@bagder congrats and thank you!
@bagder Congratulations and happy curl-birthday / curl-day / curl-iversary!
@bagder Gratulerer med dagen!