Commonly called Crelle's Journal, the Journal für die reine und angewandte Mathematik (Journal of Pure and Applied Mathematics) was first published in 1826 in Berlin by mathematician August Crelle, who remained editor until his death in 1855. The Journal was the first mathematics periodical of its kind, and is still published today.
Crelle's Journal is unique in the history of mathematics in that it was published without any connection to an academy or scientific society. As such, it included work done by a broader range of people, not just those affiliated with a particular institution. Moreover, there was no need to include proceedings of any such institution; it was devoted entirely to the broadest possible contribution of knowledge to the academic world.
One of Euler's works appears in Crelle's Journal, and one in the Archiv der reine und angewandte Mathematik (Archive of Pure and Applied Mathematics), as shown below: