The Probert Encyclopaedia is a free online reference work for researchers, students, journalists and the curious, offering over 50,000 articles on human knowledge ranging from the common to the obscure.
Articles are sufficiently concise to allow facts to be checked quickly, and yet the most comprehensive set of hypertext links allows a train of thought to be explored easily.

General Information  

• A   B   Ca - Cm   Cn - Cz   D   E   F - H   I - N   O - P   Q - R   S   T   U   V   W   X - Z  

People And Peoples  

• A   B   C   D - E   F - G   H - I   Ja - Ji   Jo - Jz   K   L   M - N   O - P   Q - R   S   T - V   W - Z  

Places Of The World  

• Aa-Am   An-Az   Ba-Bg   Bh-Bm   Bn-Bq   Br-Bz   Ca-Ce   Cf-Cm   Cn-Co   Cp-Cz   Da-Di   Dj-Dz   Ea-Ef   Eg-Ez   Fa-Fm   Fn-Fz   Ga-Gm   Gn-Gz   Ha-He   Hf-Hz   I   J   K   La-Le   Lf-Lm   Ln-Lz   Ma-Md   Me-Mh   Mi-Mz   Na-Ne   Nf-Nz   O   Pa-Pk   Pl-Pz   Q   Ra-Rm   Rn-Rz   Sa-Sd   Se-Sh   Si-So   Sp-Ss   St-Sz   Ta-Tm   Tn-Tz   U-V   Wa-We   Wf-Wz   X-Z  

Mythology  

• Greek & Roman A - M   Greek & Roman N - Z   Egyptian   Celtic   Norse   Voodoo   Aztec & Mayan   Hindu   Sumerian   Enochian   Other  

Rocks And Minerals  

• A - E   F - N   O - Z  

Sport  

• A - M   N - Z  

Animals And Plants  

• A - B   C   D - E   F - G   H   I - N   O - Q   R - S   T - Z  

Weapons and Warfare  

• 1 - A   B   C - F   G - O   P - Z  

Food and Drink  

• A - Z  

Aircraft  

• A - Z  

Coins And Currencies  

• A - Z  

Medicine  

• A - M  
• N - Z  

The Plays Of Shakespeare  

• A - Z  

Abbreviations  

• 0 - E   F - M   N - Z  

Computer Viruses  

• 0 - 9   A - C   D - G   H - L   M - R   S - T   V - Z  

Movies  

• A - Z  

Slang  

• A - M   N - Z  

Full Index  

• 0 - A   B   C   D - E   F - G   H - K   L   M   N - O   P - Q   R   S   T   U - Z