**5. Conclusions**

Hopefully the contribution made in this article is a prelude to further research developments in the field of ordinary differential equations, continuing the historical interpretation approach adopted here, i.e., not limiting it to a chronological description of the results obtained by the founding masters, but rather to mastering their techniques, in the light of both the most recent knowledge, such as Lie symmetries, used in this article, and computer algebra, which allows to tackle computational difficulties that could not be faced previously and to consider generalisations of equations dealt with in the past.

**Funding:** Work supported by RFO 2018 (Panel 13) Italian grant funding.

**Acknowledgments:** Jacopo Riccati's lectures on differential equations have been highlighted to me by G. Mingari Scarpello: I take the opportunity to thank him warmly. To access Riccati's book I took full advantage of the on-line resources provided by Biblioteca Europea di Informazione e Cultura https://www.beic.it/it/articoli/biblioteca-digitale (accessed on 5 June 2021).

**Conflicts of Interest:** The author declares that he has no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

## **References**

