1. Introduction  
2. ALPINE — The Largest Post-Reionization Multiwavelength Survey  
2.1. Sample and Observations  
2.2. Overview of ALPINE’s Research Topics  
3. Results  
3.1. The $C^{+}$ Luminosity Function  
3.2. Is $C^{+}$ a Good Tracer of Star Formation at $z>4$?  
3.3. SFR Density, Main-Sequence, and Dust Abundance across Cosmic Time  
3.4. Gas Reservoirs and Baryon Cycle at $z>4$  
3.5. Contribution of Mergers to Mass Assembly and the Emergence of Rotators  
4. Discussion  
5. Conclusions