Some of us are going through Sketches from Church History by S M Houghton one small chapter at a time. (By the way, the book has pictures.) Aiding us in this study is the work book by Rebecca Frawley. Both are Banner of Truth books.
Now we are at
Chapter 1 The Early Church
Some keywords/names to remember/key ideas from this chapter are:
- Acts of the Apostles
- Persecution from unbelieving Jews
- Persecution under Emperor Nero (54-68 A.D.)
- Roman historian Tacitus
- Suetonius, another Roman writer
- Correspondence between the Younger Pliny and Emperor Trajan
- Justin Martyr and his Apologies
- Christian writer named Tertullian
- ICHTHUS, a well-known acrostic
- Why Christians were persecuted
- Persecution (303 A.D. – 311 A.D.) under reigns of Emperor Diocletian and Emperor Galerius
- Eusebius a later Christian historian
Courage to tremble 
This does look like an interesting title.