To get connected to Lojban chat use any of the following methods (your and others' messages will be available in all of them no matter which method you use).
People involved in Lojban community usually read each day's backlog and will answer your questions within several hours and often even within minutes.
Using this method you will be able to read the history of the chat since September 2018.
#*<span class="plainlinks">[https://m.me/join/AbbkOHJdyXYlZg50 jbosnu]</span> - talk in Lojban only
#*<span class="plainlinks">[https://m.me/join/Abaph5Ju2IprttSq jboselbau]</span> - for any offtopic discussions :)
Using this method you will be able to read the history of the chat since the beginning of 2016.