The French, Croatian and Russian file are missing.

$ rpm -q calendar
calendar-1.35-4.20190227cvs.fc31.x86_64

$ calendar -f /usr/share/calendar/calendar.all 
In file included from <stdin>:12:
./calendar.french:11:2: fatal error: fr_FR.UTF-8/calendar.all: No such file or directory
   11 | 
      |  ^                         
compilation terminated.
Mar 03 	Bulgaria regains its independence from Ottoman Empire, 1878
Mar 03 	Girl's Day in Japan
Mar 03 	Throne Day in Morocco
Mar 03 	Buffalo Springfield is formed in Los Angeles, 1966
Mar 04 	Casimir Pulaski born, 1747
Mar 04 	Gogol dies, 1852
Mar 04 	First Cray-1 shipped to Los Alamos, 1976
Mar 04 	Emile Berliner invents the microphone, 1877
Mar 04 	Vermont Admission Day (admitted as 14th state in 1791)
Mar 04 	Antonio Vivaldi born in Venice, Italy, 1678

$ pwd
/usr/share/calendar

$ tree
.
├── calendar.all
├── calendar.birthday
├── calendar.canada
├── calendar.christian
├── calendar.computer
├── calendar.croatian
├── calendar.discord
├── calendar.fictional
├── calendar.french
├── calendar.german
├── calendar.history
├── calendar.holiday
├── calendar.judaic
├── calendar.music
├── calendar.nz
├── calendar.openbsd
├── calendar.pagan
├── calendar.russian
├── calendar.space
├── calendar.uk
├── calendar.ushistory
├── calendar.usholiday
├── calendar.world
├── de_DE.ISO_8859-1
│   ├── calendar.1
│   ├── calendar.c
│   ├── calendar.h
│   └── calendar.o
├── fr_FR.ISO8859-1
├── hr_HR.ISO_8859-2
└── ru_RU.KOI8-R