I found Erethdor's grimoire.

After freeing Solak from Erethdor's torment and hold, I found Erethdor's grimoire.

3 Zamoraks.

I killed 3 Zamorak, the god of chaos.

Levelled up Defence.

I levelled my Defence skill, I am now level 55.

Levelled up Constitution.

I levelled my Constitution skill, I am now level 55.

Levelled all skills over 70

By levelling up my Invention skill, I achieved at least level 70 in all skills.

Nex.

I killed a devastating creature of Zaros, Nex.

(Hard mode) Helwyr.

I killed the shapeshifting elven hunter, Helwyr. (Hard mode)

Levelled all skills over 32

By levelling up my Invention skill, I achieved at least level 32 in all skills.

I've done a special event.

Fully restored a collection of Guthixian artefacts.

Levelled up Thieving.

I levelled my Thieving skill, I am now level 86.

Levelled up Firemaking.

I levelled my Firemaking skill, I am now level 104.

Levelled up Magic.

I levelled my Magic skill, I am now level 109.

I found some Vestments of Havoc Boots

After killing a Zamorak, Lord of Chaos, it dropped some Vestments of Havoc Boots.

90 000 000 XP

I now have at least 90000000 experience points in the Ranged skill.

148 000 000 XP

I now have at least 148000000 experience points in the Agility skill.

52 000 000 XP

I now have at least 52000000 experience points in the Runecrafting skill.

Seiryu the Azure Serpent.

I killed a great guardian of the eastern lands, Seiryu the Azure Serpent.

I found some Vestments of Havoc Hood

After killing a Zamorak, Lord of Chaos, it dropped some Vestments of Havoc Hood.

Zamorak, Lord of Chaos.

I killed The god of chaos, Zamorak.

Zamorak, Lord of Chaos.

I killed The god of chaos, Zamorak.

46 000 000 XP

I now have at least 46000000 experience points in the Necromancy skill.

168 000 000 XP

I now have at least 168000000 experience points in the Runecrafting skill.

Maintained Clan Fealty 3

I have maintained Fealty rank 3 with my clan.

Visited my Clan Citadel.

I have visited my Clan Citadel this week.

the Ambassador.

I killed Kranon the Ambassador, the undead dragonkin harbinger of Xau-Tak.

2 Black Stone Dragons.

I killed 2 imposing, experimental monstrosities, Black Stone Dragons.

114 000 000 XP

I now have at least 114000000 experience points in the Crafting skill.

10 Zamoraks.

I killed 10 Zamorak, the god of chaos.

54 000 000 XP

I now have at least 54000000 experience points in the Slayer skill.

top of the Last Guardian's bow

After killing a Zamorak, Lord of Chaos, it dropped a top of the Last Guardian's bow.